| 释义 |
Definition of sigmoid in English: sigmoidadjectiveˈsɪɡmɔɪdˈsɪɡmɔɪd 1Curved like the uncial sigma; crescent-shaped. 成Σ形的，新月形的 Example sentencesExamples - The main body of the element comprises a longitudinal bony buttress that supports a very slight sigmoid row containing a minimum of five shallow tooth sockets.
- The growth curve of the fruit of Marisol clementine fitted a single sigmoid curve well.
- Usually, a time course of plant growth follows a sigmoid curve, which can be described by a logistic function.
- To isolate deviations from typical tree growth, we developed a model based on the amount of shoot elongation, which over equal time intervals approximates a sigmoid curve.
- Fruit development was described by an approximately sigmoid growth pattern based on fresh weight, irrespective of cultivar.
2S-shaped. 成S形的 Example sentencesExamples - A series of unsuccessful attempts at scheduling surgery for her sigmoid colectomy followed because of complications with her neutrophil count and hospitalization for new onset atrial fibrillation.
- ‘The river flows in long sigmoid Curves,’ he wrote, ‘through an alluvial valley of no great width.’
- First, the cumulative adoption of an innovation over time follows an S-shaped or sigmoid curve.
nounˈsɪɡmɔɪdˈsɪɡmɔɪd Anatomy short for sigmoid colon Example sentencesExamples - The sigmoid may lie in the abdomen just inferior to the splenic flexure of the transverse colon, or in the right iliac fossa.
- Although sigmoid volvulus can resolve spontaneously, nonoperative management begins with fluid resuscitation and antibiotics, followed by barium enema detorsion of the sigmoid.
- The most frequently involved site is the sigmoid.
- An enema shows a normal sized rectum and small caliber sigmoid and descending colon with a transition zone in colonic caliber occurring at the level of the splenic flexure.
Derivativesadjective The majority of the curves display a simple sigmoidal pH dependence; however, several residues exhibit more complex shapes. Example sentencesExamples - On the other hand, the curve describing the aggregation equilibrium in the membrane shows that aggregation in this phase is much less favored as compared to water and exhibits a marked sigmoidal shape.
- A blood sample drawn at presentation was examined; unlike all other specimens studied, there was a sigmoidal increase at 550 nm, but not at 610 or 700 nm.
- The stopping probability curves are distinctly sigmoidal in shape, and the decreasing slope at further distances reflects the attenuating effect of the distance × speed interaction.
- When onion seedlings recovered from water stress, the growth curve was sigmoidal and it took approximately 5-6 d before the elongation rate of the shoot or root reached a maximum.
OriginLate 17th century: from Greek sigmoeidēs, from sigma (see sigma). Definition of sigmoid in US English: sigmoidadjectiveˈsiɡmoidˈsɪɡmɔɪd 1Curved like the uncial sigma (C); crescent-shaped. 成Σ形的，新月形的 Example sentencesExamples - Usually, a time course of plant growth follows a sigmoid curve, which can be described by a logistic function.
- The main body of the element comprises a longitudinal bony buttress that supports a very slight sigmoid row containing a minimum of five shallow tooth sockets.
- To isolate deviations from typical tree growth, we developed a model based on the amount of shoot elongation, which over equal time intervals approximates a sigmoid curve.
- The growth curve of the fruit of Marisol clementine fitted a single sigmoid curve well.
- Fruit development was described by an approximately sigmoid growth pattern based on fresh weight, irrespective of cultivar.
2S-shaped. 成S形的 Example sentencesExamples - ‘The river flows in long sigmoid Curves,’ he wrote, ‘through an alluvial valley of no great width.’
- First, the cumulative adoption of an innovation over time follows an S-shaped or sigmoid curve.
- A series of unsuccessful attempts at scheduling surgery for her sigmoid colectomy followed because of complications with her neutrophil count and hospitalization for new onset atrial fibrillation.
nounˈsiɡmoidˈsɪɡmɔɪd Anatomy short for sigmoid colon Example sentencesExamples - Although sigmoid volvulus can resolve spontaneously, nonoperative management begins with fluid resuscitation and antibiotics, followed by barium enema detorsion of the sigmoid.
- The most frequently involved site is the sigmoid.
- An enema shows a normal sized rectum and small caliber sigmoid and descending colon with a transition zone in colonic caliber occurring at the level of the splenic flexure.
- The sigmoid may lie in the abdomen just inferior to the splenic flexure of the transverse colon, or in the right iliac fossa.
OriginLate 17th century: from Greek sigmoeidēs, from sigma (see sigma). |