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词汇 chloroform
释义

Definition of chloroform in English:

chloroform

noun ˈklɔːrəfɔːmˈklɒrəfɔːmˈklɔrəˌfɔrm
mass noun
  • A colourless, volatile, sweet-smelling liquid used as a solvent and formerly as a general anaesthetic.

    氯仿

    Chemical formula: CHCl₃

    Example sentencesExamples
    • In particular, chloroform would not hinder condensation reactions as water does.
    • Furthermore, the difference in molecular structures may lead to the difference in the solvent cavities formed by chloroform molecules.
    • These crystals are confirmed by their solubility in chloroform and ether.
    • The hypophase was removed with a Pasteur pipette and the aqueous phase re-extracted with chloroform until it was colourless.
    • In early days, the dose of chloroform or of ether had to be sufficient to achieve all the required effects, but in modern practice the anaesthetic drug is used only to produce the loss of consciousness and amnesia.
    • The researchers used methanol, chloroform, hexane, or water to extract residues from pot sherds.
    • This is a modified mixture of Carnoy's fluid containing absolute alcohol, chloroform, and glacial acetic acid.
    • The methanol extract was evaporated and partitioned with n-hexane, benzene, trichloromethane, ethyl acetate and n-butanol, consecutively.
    • The last step in the process is to wash the methamphetamine in chloroform, tolulene or ether.
    • Finally, the drugs are recovered by using industrial solvents, such as acetone, ether, or chloroform.
    • The residue was chromatographed on a column of silica gel prepared with chloroform.
    • Cholesterol is soluble in chloroform, ether, benzene, or hot alcohol and other organic solvents.
    • Some of the volatile substances in these products include toluene, chloroform, butane, propane, acetone, and many halogenated hydrocarbons.
    • However, when chlorine combines with other materials in water, it forms chloroform and related chemicals called trihalomethanes.
    • In a first step, the two lipids were dissolved in chloroform and the solvent evaporated under vacuum overnight.
    • These chemicals were mostly chlorinated solvents such as chloroform.
    • It does not dissolve in water, although it does dissolve in many organic liquids, such as benzene, chloroform, and carbon disulfide.
    • While he is dozy from drink, the ‘Little Nurse’ passes a cloth, on which she has dropped some liquid chloroform, in front of his face.
    • The literature cites the use of ether, chloroform, acetone and mineral oil as possible options.
    • I could give open mask chloroform or ether, but I might be arrested for doing it now.
verb ˈklɔːrəfɔːmˈklɒrəfɔːmˈklɔrəˌfɔrm
[with object]
  • Make (someone) unconscious with chloroform.

    they terrorized residents, often chloroforming their victims
    Example sentencesExamples
    • He chloroformed me’ she continued, and her eyes widened in comprehension as Jackson shot her a furtive glance, then glanced over at the nurse, who was listening to the exchange with interest.
    • Our other friends, who wanted to get some dinner, almost had to chloroform us to get us out of there.
    • Once that clears up, Vainio turns his prey down a dark passage, chloroforming them again until all you can hear is their drugged, staggering heartbeats and the swaying neon of the red-light district.
    • Within minutes our helpful staff members will be leaping out of your unmarked van to chloroform and tie-up the person or persons of your choosing.
    • And even worse, the headmistress' dog Trixie has been chloroformed and thrown down a well.
    • As Marcus called Cole to explain that he was leaving town, he was attacked from behind and chloroformed.
    • I pretended to be asleep and held my breath when you tried to chloroform me, you idiot!
    • It's not as though unclaimed children are chloroformed and sold into slavery.
    • Somebody sneaks in and chloroforms you, or sprays knock-out gas under your door, and while you are comatose and unresisting, your worldly goods are stripped.
    • I've gotten chloroformed worse and stayed awake.
    • I was chloroformed with only the slightest amount of hesitation by Angela, and my last thought was…
    • The surgeon comes to look at Paul, who refuses to be chloroformed out of fear that they will amputate his leg.
    • Nothing to report for today, because it's a day of duty - I work at home on Mondays, and since this means chloroforming the baby and locking the dog in the garage, there are no heartwarming tales.
    • The cops were chloroformed; he wasn't trying to draw too much attention.
    • Mrs. Torpey chloroformed the jeweler, after which her husband restrained him and stole his merchandise.
    • I understood now how it was the cat had howled until I chloroformed it.
    • There's a guestbook you can sign, detailing how you too are attracted to people who have been chloroformed, but you might run the fear of pressing the wrong button and have sleep gas come from your computer.

Origin

Mid 19th century: from chloro- (representing chlorine) + form- from formic acid.

Definition of chloroform in US English:

chloroform

nounˈklôrəˌfôrmˈklɔrəˌfɔrm
  • A colorless, volatile, sweet-smelling liquid used as a solvent and formerly as a general anesthetic.

    氯仿

    Alternative name: trichloromethane; chemical formula: CHCl₃

    Example sentencesExamples
    • Some of the volatile substances in these products include toluene, chloroform, butane, propane, acetone, and many halogenated hydrocarbons.
    • This is a modified mixture of Carnoy's fluid containing absolute alcohol, chloroform, and glacial acetic acid.
    • In particular, chloroform would not hinder condensation reactions as water does.
    • The last step in the process is to wash the methamphetamine in chloroform, tolulene or ether.
    • It does not dissolve in water, although it does dissolve in many organic liquids, such as benzene, chloroform, and carbon disulfide.
    • I could give open mask chloroform or ether, but I might be arrested for doing it now.
    • The methanol extract was evaporated and partitioned with n-hexane, benzene, trichloromethane, ethyl acetate and n-butanol, consecutively.
    • The residue was chromatographed on a column of silica gel prepared with chloroform.
    • These chemicals were mostly chlorinated solvents such as chloroform.
    • While he is dozy from drink, the ‘Little Nurse’ passes a cloth, on which she has dropped some liquid chloroform, in front of his face.
    • The hypophase was removed with a Pasteur pipette and the aqueous phase re-extracted with chloroform until it was colourless.
    • In early days, the dose of chloroform or of ether had to be sufficient to achieve all the required effects, but in modern practice the anaesthetic drug is used only to produce the loss of consciousness and amnesia.
    • However, when chlorine combines with other materials in water, it forms chloroform and related chemicals called trihalomethanes.
    • The researchers used methanol, chloroform, hexane, or water to extract residues from pot sherds.
    • Furthermore, the difference in molecular structures may lead to the difference in the solvent cavities formed by chloroform molecules.
    • In a first step, the two lipids were dissolved in chloroform and the solvent evaporated under vacuum overnight.
    • Finally, the drugs are recovered by using industrial solvents, such as acetone, ether, or chloroform.
    • Cholesterol is soluble in chloroform, ether, benzene, or hot alcohol and other organic solvents.
    • These crystals are confirmed by their solubility in chloroform and ether.
    • The literature cites the use of ether, chloroform, acetone and mineral oil as possible options.
verbˈklôrəˌfôrmˈklɔrəˌfɔrm
[with object]
  • Render (someone) unconscious with chloroform.

    用氯仿使(某人)失去知觉

    they terrorized residents, often chloroforming their victims
    Example sentencesExamples
    • The surgeon comes to look at Paul, who refuses to be chloroformed out of fear that they will amputate his leg.
    • As Marcus called Cole to explain that he was leaving town, he was attacked from behind and chloroformed.
    • There's a guestbook you can sign, detailing how you too are attracted to people who have been chloroformed, but you might run the fear of pressing the wrong button and have sleep gas come from your computer.
    • I was chloroformed with only the slightest amount of hesitation by Angela, and my last thought was…
    • Mrs. Torpey chloroformed the jeweler, after which her husband restrained him and stole his merchandise.
    • And even worse, the headmistress' dog Trixie has been chloroformed and thrown down a well.
    • Nothing to report for today, because it's a day of duty - I work at home on Mondays, and since this means chloroforming the baby and locking the dog in the garage, there are no heartwarming tales.
    • Our other friends, who wanted to get some dinner, almost had to chloroform us to get us out of there.
    • The cops were chloroformed; he wasn't trying to draw too much attention.
    • Once that clears up, Vainio turns his prey down a dark passage, chloroforming them again until all you can hear is their drugged, staggering heartbeats and the swaying neon of the red-light district.
    • Within minutes our helpful staff members will be leaping out of your unmarked van to chloroform and tie-up the person or persons of your choosing.
    • I pretended to be asleep and held my breath when you tried to chloroform me, you idiot!
    • I understood now how it was the cat had howled until I chloroformed it.
    • Somebody sneaks in and chloroforms you, or sprays knock-out gas under your door, and while you are comatose and unresisting, your worldly goods are stripped.
    • He chloroformed me’ she continued, and her eyes widened in comprehension as Jackson shot her a furtive glance, then glanced over at the nurse, who was listening to the exchange with interest.
    • It's not as though unclaimed children are chloroformed and sold into slavery.
    • I've gotten chloroformed worse and stayed awake.

Origin

Mid 19th century: from chloro- (representing chlorine) + form- from formic acid.

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