Definition of invasive in English:

invasive

adjective ɪnˈveɪsɪvɪnˈveɪsɪv

1Tending to spread very quickly and undesirably or harmfully.
（尤指植物或疾病）侵袭的，扩散的
patients suffering from invasive cancer
Example sentencesExamples
- ‘Polyp cancers’ are defined as invasive cancers removed at colonoscopy when colectomy was not carried out
- Amphotericin B is the cornerstone for treatment of invasive fungal infections, especially in neutropenic patients
- But since the plant's seeds are sterile, the grass does not spread like an invasive species.
- If you get regular Pap tests, your chances of developing invasive cervical cancer are very low.
- They can be very invasive, spreading with suckers and by stems rooting where they touch the soil but hard annual pruning will keep growth in check.
- This finding underscores the need for careful follow-up for the development of muscle invasive cancer.
- Battling invasive aquatics Texas has problems with harmful invasive aquatic plants.
- If abnormal cells are found early on, pre-cancerous changes can be treated before they become invasive cancer of the vulva.
- These lesions can progress to carcinoma in situ and then to invasive cancer.
- Only intensive cutting and repeated herbicide treatment can halt the invasive shrub's spread.
- It is also used by people interested in research and conservation, or those simply interested in the spread of invasive aquatic animals.
- No cases of invasive cervical cancer occurred in women who had at least three previously normal Pap tests.
- Sixty percent of women who are diagnosed with invasive cervical cancer have not had a Pap smear in the past five years.
- After habitat destruction, the spread of alien invasive species in our countryside is one of the most pervasive threats to our native plants.
- These superficial lesions can also be treated bronchoscopically to prevent progression to invasive cancer.
- Intraductal proliferative lesions are associated with increased invasive cancer risk.
- There was invasive cancer in the cyst wall and the adjacent solid areas.
- Why do nerve cell bundles ‘camp’ near the invasive front of colon cancer tumors?
- Not a single case of invasive cervical cancer was missed with the use of HPV DNA testing in conjunction with cytology.
- However, significant differences have been observed between endometrial cancer and invasive ovarian cancer.
Synonyms
virulent, infectious, uncontrollable, dangerous, harmful, pernicious
1. 1.1 Tending to intrude on a person's thoughts or privacy.
  （尤指行动或感觉）侵犯隐私的，唐突的，侵扰的，烦扰的
  the sound of the piano was invasive
  钢琴的声音令人心烦。
  Example sentencesExamples
  I mentioned this bill, and that person came up with a story about being the subject of unwanted and invasive photography.
  Noise becomes something seen, something literally invasive of privacy.
  All these government programs are invasive of privacy, paternalistic, demeaning, and inefficient.
  The collection of a specimen is a humiliating, invasive violation of privacy.
  If a statement might be defamatory or invasive of privacy or infringing on the publicity of a live person, I don't think that statement should be used regarding a dead celebrity.
  So it's a little bit invasive right now, and we have no privacy.
  Historically, a privacy invasion would have seemed greatest when a physically invasive observation took place.
  And with the average person reading up to 60 e-mails a day, this junk can easily become both intrusive and invasive.
  Undertaking such searches is highly invasive of an applicant's privacy and potentially very damaging.
  To those with strong networks of family and friends, such measures may seem paranoid or unduly invasive of privacy.
  Eavesdropping is difficult, time-consuming and invasive of privacy.
  Data retention is an invasive tool that interferes with the private lives of all 450 million people in the European Union.
  Synonyms
  intruding, obtrusive, interrupting, trespassing, unwanted, unwelcome
2. 1.2 (of medical procedures) involving the introduction of instruments or other objects into the body or body cavities.
  （医疗手术中）器械或其他物体进入身体或体腔内的，侵入性的
  minimally invasive surgery
  最少侵入体内的外科手术。
  Example sentencesExamples
  Patients maintained on warfarin may occasionally need to stop anticoagulant therapy during invasive procedures.
  Colonoscopy is an indispensable part of modern medical practice and one of the most commonly used invasive medical procedures.
  Some of these women regret entering a conveyor belt process that ends up with an invasive procedure that causes a high rate of fetal loss.
  Junior nurses and healthcare assistants more involved in physical care seemed able to recognise that there was more to care than drugs, surgery, and invasive procedures.
  It also may be used in other ambulatory settings that perform surgery or other invasive procedures.
  The definitive diagnosis thus requires an invasive procedure with biopsy.
  Invasive procedures such as needle biopsies are guided by ultrasound images.
  The importance of asepsis and sterilization of instruments and supplies for invasive procedures became widely accepted.
  Neonatologists agree on the importance of pain relief for newborn babies undergoing invasive procedures, such as placement of a chest drain.
  Most attempts to move complex and invasive procedures out of hospital completely and into patients' homes remain marginal.
  But minimally invasive procedures, using instruments controlled by humans, have their limitations.
  Coagulopathy should be corrected when there is overt bleeding or an invasive procedure is planned.
  Percutaneous cholecystostomy is a minimally invasive procedure that can benefit patients with serious comorbidity who are at high risk from major surgery.
  The new policy had the potential to touch many areas in the hospital because invasive procedures are performed in a variety of settings.
  At the same time, the likelihood of harm from false-positive results and invasive procedures and treatment is substantial.
  Central venous catheterization is one of the most commonly used invasive procedures in critically ill patients.
  The local research ethics committee's permission must be sought before a clinician undertakes a new invasive procedure
  Infants born after very short gestations and require intensive care and undergo invasive procedures are most at risk.
  For patients with grade III fixed posterior subluxation, more invasive procedures should be considered.
  For major invasive procedures or surgery, it may be reconsidered 12 hours after the procedure.

Derivatives

invasively

adverb

Since then, it has spread invasively and now covers over 44 percent of the habitat for two endangered plants on the Humboldt Bay dunes.
Example sentencesExamples
- Many kidney conditions can now be treated less invasively by a percutaneous approach through the loin, retrograde approaches through the urethra, bladder, and ureter, or laparoscopy.
- Indices of diastolic dysfunction can be obtained non-invasively with Doppler echocardiography or invasively with cardiac catheterisation and measurement of left ventricular pressure changes.
- Although not definitive, recent studies have shown that early initiation of lipid-lowering therapy is safe and effective in both medically and invasively treated patients.
- They cultivate a huge crop of it and once the plants' paratroops have descended on my territory, the roots spread so invasively that everything else gives up and goes.

invasiveness

noun

Whatever benefits the plant provides to wildlife are greatly overshadowed by the environmental invasiveness of the noxious species.
Example sentencesExamples
- Failure to respond to treatment should trigger an escalation in the invasiveness of the monitoring.
- Some of its influence has derived from its pervasiveness, or invasiveness, in many aspects of life among the people of Taiwan.
- The changes in the excitation spectrum can be related to the degree of invasiveness of the carcinoma.
- The authors also used flow cytometry to characterize melanomas of varying invasiveness.

Origin

Late Middle English: from obsolete French invasif, -ive or medieval Latin invasivus, from Latin invadere (see invade).

Rhymes

abrasive, evasive, persuasive, pervasive

Definition of invasive in US English:

invasive

adjectiveinˈvāsivɪnˈveɪsɪv

1(especially of plants or a disease) tending to spread prolifically and undesirably or harmfully.
（尤指植物或疾病）侵袭的，扩散的
Example sentencesExamples
- There was invasive cancer in the cyst wall and the adjacent solid areas.
- Sixty percent of women who are diagnosed with invasive cervical cancer have not had a Pap smear in the past five years.
- However, significant differences have been observed between endometrial cancer and invasive ovarian cancer.
- Only intensive cutting and repeated herbicide treatment can halt the invasive shrub's spread.
- Intraductal proliferative lesions are associated with increased invasive cancer risk.
- Why do nerve cell bundles ‘camp’ near the invasive front of colon cancer tumors?
- These superficial lesions can also be treated bronchoscopically to prevent progression to invasive cancer.
- It is also used by people interested in research and conservation, or those simply interested in the spread of invasive aquatic animals.
- Amphotericin B is the cornerstone for treatment of invasive fungal infections, especially in neutropenic patients
- They can be very invasive, spreading with suckers and by stems rooting where they touch the soil but hard annual pruning will keep growth in check.
- This finding underscores the need for careful follow-up for the development of muscle invasive cancer.
- But since the plant's seeds are sterile, the grass does not spread like an invasive species.
- After habitat destruction, the spread of alien invasive species in our countryside is one of the most pervasive threats to our native plants.
- ‘Polyp cancers’ are defined as invasive cancers removed at colonoscopy when colectomy was not carried out
- If you get regular Pap tests, your chances of developing invasive cervical cancer are very low.
- These lesions can progress to carcinoma in situ and then to invasive cancer.
- No cases of invasive cervical cancer occurred in women who had at least three previously normal Pap tests.
- Battling invasive aquatics Texas has problems with harmful invasive aquatic plants.
- Not a single case of invasive cervical cancer was missed with the use of HPV DNA testing in conjunction with cytology.
- If abnormal cells are found early on, pre-cancerous changes can be treated before they become invasive cancer of the vulva.
Synonyms
virulent, infectious, uncontrollable, dangerous, harmful, pernicious
1. 1.1 (especially of an action or sensation) tending to intrude on a person's thoughts or privacy.
  （尤指行动或感觉）侵犯隐私的，唐突的，侵扰的，烦扰的
  the sound of the piano was invasive
  钢琴的声音令人心烦。
  Example sentencesExamples
  All these government programs are invasive of privacy, paternalistic, demeaning, and inefficient.
  I mentioned this bill, and that person came up with a story about being the subject of unwanted and invasive photography.
  To those with strong networks of family and friends, such measures may seem paranoid or unduly invasive of privacy.
  Noise becomes something seen, something literally invasive of privacy.
  So it's a little bit invasive right now, and we have no privacy.
  Undertaking such searches is highly invasive of an applicant's privacy and potentially very damaging.
  Eavesdropping is difficult, time-consuming and invasive of privacy.
  Historically, a privacy invasion would have seemed greatest when a physically invasive observation took place.
  And with the average person reading up to 60 e-mails a day, this junk can easily become both intrusive and invasive.
  The collection of a specimen is a humiliating, invasive violation of privacy.
  If a statement might be defamatory or invasive of privacy or infringing on the publicity of a live person, I don't think that statement should be used regarding a dead celebrity.
  Data retention is an invasive tool that interferes with the private lives of all 450 million people in the European Union.
  Synonyms
  intruding, obtrusive, interrupting, trespassing, unwanted, unwelcome
2. 1.2 (of medical procedures) involving the introduction of instruments or other objects into the body or body cavities.
  （医疗手术中）器械或其他物体进入身体或体腔内的，侵入性的
  minimally invasive surgery
  最少侵入体内的外科手术。
  Example sentencesExamples
  For major invasive procedures or surgery, it may be reconsidered 12 hours after the procedure.
  The definitive diagnosis thus requires an invasive procedure with biopsy.
  Central venous catheterization is one of the most commonly used invasive procedures in critically ill patients.
  Patients maintained on warfarin may occasionally need to stop anticoagulant therapy during invasive procedures.
  It also may be used in other ambulatory settings that perform surgery or other invasive procedures.
  But minimally invasive procedures, using instruments controlled by humans, have their limitations.
  Percutaneous cholecystostomy is a minimally invasive procedure that can benefit patients with serious comorbidity who are at high risk from major surgery.
  Most attempts to move complex and invasive procedures out of hospital completely and into patients' homes remain marginal.
  Junior nurses and healthcare assistants more involved in physical care seemed able to recognise that there was more to care than drugs, surgery, and invasive procedures.
  Invasive procedures such as needle biopsies are guided by ultrasound images.
  Coagulopathy should be corrected when there is overt bleeding or an invasive procedure is planned.
  Neonatologists agree on the importance of pain relief for newborn babies undergoing invasive procedures, such as placement of a chest drain.
  Some of these women regret entering a conveyor belt process that ends up with an invasive procedure that causes a high rate of fetal loss.
  At the same time, the likelihood of harm from false-positive results and invasive procedures and treatment is substantial.
  The local research ethics committee's permission must be sought before a clinician undertakes a new invasive procedure
  Colonoscopy is an indispensable part of modern medical practice and one of the most commonly used invasive medical procedures.
  Infants born after very short gestations and require intensive care and undergo invasive procedures are most at risk.
  The importance of asepsis and sterilization of instruments and supplies for invasive procedures became widely accepted.
  The new policy had the potential to touch many areas in the hospital because invasive procedures are performed in a variety of settings.
  For patients with grade III fixed posterior subluxation, more invasive procedures should be considered.

Origin

Late Middle English: from obsolete French invasif, -ive or medieval Latin invasivus, from Latin invadere (see invade).

词汇	invasive
释义	Definition of invasive in English: invasive adjective ɪnˈveɪsɪvɪnˈveɪsɪv 1Tending to spread very quickly and undesirably or harmfully. （尤指植物或疾病）侵袭的，扩散的 patients suffering from invasive cancer Example sentencesExamples ‘Polyp cancers’ are defined as invasive cancers removed at colonoscopy when colectomy was not carried out Amphotericin B is the cornerstone for treatment of invasive fungal infections, especially in neutropenic patients But since the plant's seeds are sterile, the grass does not spread like an invasive species. If you get regular Pap tests, your chances of developing invasive cervical cancer are very low. They can be very invasive, spreading with suckers and by stems rooting where they touch the soil but hard annual pruning will keep growth in check. This finding underscores the need for careful follow-up for the development of muscle invasive cancer. Battling invasive aquatics Texas has problems with harmful invasive aquatic plants. If abnormal cells are found early on, pre-cancerous changes can be treated before they become invasive cancer of the vulva. These lesions can progress to carcinoma in situ and then to invasive cancer. Only intensive cutting and repeated herbicide treatment can halt the invasive shrub's spread. It is also used by people interested in research and conservation, or those simply interested in the spread of invasive aquatic animals. No cases of invasive cervical cancer occurred in women who had at least three previously normal Pap tests. Sixty percent of women who are diagnosed with invasive cervical cancer have not had a Pap smear in the past five years. After habitat destruction, the spread of alien invasive species in our countryside is one of the most pervasive threats to our native plants. These superficial lesions can also be treated bronchoscopically to prevent progression to invasive cancer. Intraductal proliferative lesions are associated with increased invasive cancer risk. There was invasive cancer in the cyst wall and the adjacent solid areas. Why do nerve cell bundles ‘camp’ near the invasive front of colon cancer tumors? Not a single case of invasive cervical cancer was missed with the use of HPV DNA testing in conjunction with cytology. However, significant differences have been observed between endometrial cancer and invasive ovarian cancer. Synonyms virulent, infectious, uncontrollable, dangerous, harmful, pernicious 1.1 Tending to intrude on a person's thoughts or privacy. （尤指行动或感觉）侵犯隐私的，唐突的，侵扰的，烦扰的 the sound of the piano was invasive 钢琴的声音令人心烦。 Example sentencesExamples I mentioned this bill, and that person came up with a story about being the subject of unwanted and invasive photography. Noise becomes something seen, something literally invasive of privacy. All these government programs are invasive of privacy, paternalistic, demeaning, and inefficient. The collection of a specimen is a humiliating, invasive violation of privacy. If a statement might be defamatory or invasive of privacy or infringing on the publicity of a live person, I don't think that statement should be used regarding a dead celebrity. So it's a little bit invasive right now, and we have no privacy. Historically, a privacy invasion would have seemed greatest when a physically invasive observation took place. And with the average person reading up to 60 e-mails a day, this junk can easily become both intrusive and invasive. Undertaking such searches is highly invasive of an applicant's privacy and potentially very damaging. To those with strong networks of family and friends, such measures may seem paranoid or unduly invasive of privacy. Eavesdropping is difficult, time-consuming and invasive of privacy. Data retention is an invasive tool that interferes with the private lives of all 450 million people in the European Union. Synonyms intruding, obtrusive, interrupting, trespassing, unwanted, unwelcome 1.2 (of medical procedures) involving the introduction of instruments or other objects into the body or body cavities. （医疗手术中）器械或其他物体进入身体或体腔内的，侵入性的 minimally invasive surgery 最少侵入体内的外科手术。 Example sentencesExamples Patients maintained on warfarin may occasionally need to stop anticoagulant therapy during invasive procedures. Colonoscopy is an indispensable part of modern medical practice and one of the most commonly used invasive medical procedures. Some of these women regret entering a conveyor belt process that ends up with an invasive procedure that causes a high rate of fetal loss. Junior nurses and healthcare assistants more involved in physical care seemed able to recognise that there was more to care than drugs, surgery, and invasive procedures. It also may be used in other ambulatory settings that perform surgery or other invasive procedures. The definitive diagnosis thus requires an invasive procedure with biopsy. Invasive procedures such as needle biopsies are guided by ultrasound images. The importance of asepsis and sterilization of instruments and supplies for invasive procedures became widely accepted. Neonatologists agree on the importance of pain relief for newborn babies undergoing invasive procedures, such as placement of a chest drain. Most attempts to move complex and invasive procedures out of hospital completely and into patients' homes remain marginal. But minimally invasive procedures, using instruments controlled by humans, have their limitations. Coagulopathy should be corrected when there is overt bleeding or an invasive procedure is planned. Percutaneous cholecystostomy is a minimally invasive procedure that can benefit patients with serious comorbidity who are at high risk from major surgery. The new policy had the potential to touch many areas in the hospital because invasive procedures are performed in a variety of settings. At the same time, the likelihood of harm from false-positive results and invasive procedures and treatment is substantial. Central venous catheterization is one of the most commonly used invasive procedures in critically ill patients. The local research ethics committee's permission must be sought before a clinician undertakes a new invasive procedure Infants born after very short gestations and require intensive care and undergo invasive procedures are most at risk. For patients with grade III fixed posterior subluxation, more invasive procedures should be considered. For major invasive procedures or surgery, it may be reconsidered 12 hours after the procedure. Derivatives invasively adverb Since then, it has spread invasively and now covers over 44 percent of the habitat for two endangered plants on the Humboldt Bay dunes. Example sentencesExamples Many kidney conditions can now be treated less invasively by a percutaneous approach through the loin, retrograde approaches through the urethra, bladder, and ureter, or laparoscopy. Indices of diastolic dysfunction can be obtained non-invasively with Doppler echocardiography or invasively with cardiac catheterisation and measurement of left ventricular pressure changes. Although not definitive, recent studies have shown that early initiation of lipid-lowering therapy is safe and effective in both medically and invasively treated patients. They cultivate a huge crop of it and once the plants' paratroops have descended on my territory, the roots spread so invasively that everything else gives up and goes. invasiveness noun Whatever benefits the plant provides to wildlife are greatly overshadowed by the environmental invasiveness of the noxious species. Example sentencesExamples Failure to respond to treatment should trigger an escalation in the invasiveness of the monitoring. Some of its influence has derived from its pervasiveness, or invasiveness, in many aspects of life among the people of Taiwan. The changes in the excitation spectrum can be related to the degree of invasiveness of the carcinoma. The authors also used flow cytometry to characterize melanomas of varying invasiveness. Origin Late Middle English: from obsolete French invasif, -ive or medieval Latin invasivus, from Latin invadere (see invade). Rhymes abrasive, evasive, persuasive, pervasive Definition of invasive in US English: invasive adjectiveinˈvāsivɪnˈveɪsɪv 1(especially of plants or a disease) tending to spread prolifically and undesirably or harmfully. （尤指植物或疾病）侵袭的，扩散的 Example sentencesExamples There was invasive cancer in the cyst wall and the adjacent solid areas. Sixty percent of women who are diagnosed with invasive cervical cancer have not had a Pap smear in the past five years. However, significant differences have been observed between endometrial cancer and invasive ovarian cancer. Only intensive cutting and repeated herbicide treatment can halt the invasive shrub's spread. Intraductal proliferative lesions are associated with increased invasive cancer risk. Why do nerve cell bundles ‘camp’ near the invasive front of colon cancer tumors? These superficial lesions can also be treated bronchoscopically to prevent progression to invasive cancer. It is also used by people interested in research and conservation, or those simply interested in the spread of invasive aquatic animals. Amphotericin B is the cornerstone for treatment of invasive fungal infections, especially in neutropenic patients They can be very invasive, spreading with suckers and by stems rooting where they touch the soil but hard annual pruning will keep growth in check. This finding underscores the need for careful follow-up for the development of muscle invasive cancer. But since the plant's seeds are sterile, the grass does not spread like an invasive species. After habitat destruction, the spread of alien invasive species in our countryside is one of the most pervasive threats to our native plants. ‘Polyp cancers’ are defined as invasive cancers removed at colonoscopy when colectomy was not carried out If you get regular Pap tests, your chances of developing invasive cervical cancer are very low. These lesions can progress to carcinoma in situ and then to invasive cancer. No cases of invasive cervical cancer occurred in women who had at least three previously normal Pap tests. Battling invasive aquatics Texas has problems with harmful invasive aquatic plants. Not a single case of invasive cervical cancer was missed with the use of HPV DNA testing in conjunction with cytology. If abnormal cells are found early on, pre-cancerous changes can be treated before they become invasive cancer of the vulva. Synonyms virulent, infectious, uncontrollable, dangerous, harmful, pernicious 1.1 (especially of an action or sensation) tending to intrude on a person's thoughts or privacy. （尤指行动或感觉）侵犯隐私的，唐突的，侵扰的，烦扰的 the sound of the piano was invasive 钢琴的声音令人心烦。 Example sentencesExamples All these government programs are invasive of privacy, paternalistic, demeaning, and inefficient. I mentioned this bill, and that person came up with a story about being the subject of unwanted and invasive photography. To those with strong networks of family and friends, such measures may seem paranoid or unduly invasive of privacy. Noise becomes something seen, something literally invasive of privacy. So it's a little bit invasive right now, and we have no privacy. Undertaking such searches is highly invasive of an applicant's privacy and potentially very damaging. Eavesdropping is difficult, time-consuming and invasive of privacy. Historically, a privacy invasion would have seemed greatest when a physically invasive observation took place. And with the average person reading up to 60 e-mails a day, this junk can easily become both intrusive and invasive. The collection of a specimen is a humiliating, invasive violation of privacy. If a statement might be defamatory or invasive of privacy or infringing on the publicity of a live person, I don't think that statement should be used regarding a dead celebrity. Data retention is an invasive tool that interferes with the private lives of all 450 million people in the European Union. Synonyms intruding, obtrusive, interrupting, trespassing, unwanted, unwelcome 1.2 (of medical procedures) involving the introduction of instruments or other objects into the body or body cavities. （医疗手术中）器械或其他物体进入身体或体腔内的，侵入性的 minimally invasive surgery 最少侵入体内的外科手术。 Example sentencesExamples For major invasive procedures or surgery, it may be reconsidered 12 hours after the procedure. The definitive diagnosis thus requires an invasive procedure with biopsy. Central venous catheterization is one of the most commonly used invasive procedures in critically ill patients. Patients maintained on warfarin may occasionally need to stop anticoagulant therapy during invasive procedures. It also may be used in other ambulatory settings that perform surgery or other invasive procedures. But minimally invasive procedures, using instruments controlled by humans, have their limitations. Percutaneous cholecystostomy is a minimally invasive procedure that can benefit patients with serious comorbidity who are at high risk from major surgery. Most attempts to move complex and invasive procedures out of hospital completely and into patients' homes remain marginal. Junior nurses and healthcare assistants more involved in physical care seemed able to recognise that there was more to care than drugs, surgery, and invasive procedures. Invasive procedures such as needle biopsies are guided by ultrasound images. Coagulopathy should be corrected when there is overt bleeding or an invasive procedure is planned. Neonatologists agree on the importance of pain relief for newborn babies undergoing invasive procedures, such as placement of a chest drain. Some of these women regret entering a conveyor belt process that ends up with an invasive procedure that causes a high rate of fetal loss. At the same time, the likelihood of harm from false-positive results and invasive procedures and treatment is substantial. The local research ethics committee's permission must be sought before a clinician undertakes a new invasive procedure Colonoscopy is an indispensable part of modern medical practice and one of the most commonly used invasive medical procedures. Infants born after very short gestations and require intensive care and undergo invasive procedures are most at risk. The importance of asepsis and sterilization of instruments and supplies for invasive procedures became widely accepted. The new policy had the potential to touch many areas in the hospital because invasive procedures are performed in a variety of settings. For patients with grade III fixed posterior subluxation, more invasive procedures should be considered. Origin Late Middle English: from obsolete French invasif, -ive or medieval Latin invasivus, from Latin invadere (see invade).
随便看	magnetopause magnetophon magnetophone magnetoplasma magnetoplasmadynamic magnetoplasmadynamics magnetoplumbite magnetoreception magnetoreceptor magnetoresistance magnetoresistive magnetoresistive magnetorotation magnetos magnetosheath magnetosome magnetosonic magnetosphere magnetospheric magnetospheric magnetostatic magnetostatics magnetostratigraphy magnetostriction magnetostrictive