请输入您要查询的英文单词:

 

单词 paraldehyde
释义

paraldehyde


par·al·de·hyde

P0059400 (pə-răl′də-hīd′)n. A colorless liquid polymer, C6H12O3, of acetaldehyde, used as a solvent and a sedative.

paraldehyde

(pəˈrældɪˌhaɪd) n (Elements & Compounds) a colourless liquid substance that is a cyclic trimer of acetaldehyde: used in making dyestuffs and as a hypnotic and anticonvulsant drug. Formula: (C2H4O)3

par•al•de•hyde

(pəˈræl dəˌhaɪd)

n. a colorless liquid compound, C6H12O3, produced by polymerization of acetaldehyde, used in medicine as a rapidly acting sedative and hypnotic. [1855–60]
Thesaurus
Noun1.paraldehyde - a colorless liquid (a cyclic trimer of acetaldehyde) that is used as a sedative and a solventethanal trimeraldehyde - any of a class of highly reactive chemical compounds; used in making resins and dyes and organic acids
Translations

paraldehyde


paraldehyde

(pârăl`dəhīd'), nervous system depressantdepressant,
any one of various substances that diminish functional activity, usually by depressing the nervous system. Barbiturates, sedatives, alcohol, and meprobamate are all depressants. Depressants have various modes of action and effects.
..... Click the link for more information.
 similar to alcohol in its effects and used as a sedativesedative,
any of a variety of drugs that relieve anxiety. Most sedatives act as mild depressants of the nervous system, lessening general nervous activity or reducing the irritability or activity of a specific organ.
..... Click the link for more information.
. A colorless flammable liquid with a disagreeable odor, paraldehyde produces sleep for up to 12 hr. with little or no muscle, heart, or respiratory depression. It is often given to alcoholics having delirium tremens, to induce sleep, and is also used to calm psychiatric patients. Like alcohol and other depressants it is addictive (see drug addiction and drug abusedrug addiction and drug abuse,
chronic or habitual use of any chemical substance to alter states of body or mind for other than medically warranted purposes. Traditional definitions of addiction, with their criteria of physical dependence and withdrawal (and often an underlying
..... Click the link for more information.
). Paraldehyde is also used in the manufacture of synthetic resins, as a preservative, and in preparing leather. It is produced by treating acetaldehyde with a small amount of sulfuric acid.

Paraldehyde

 

a trimer of acetaldehyde. Colorless liquid, boiling point 1240C. The structure of paraldehyde is

The compound readily depolymerizes upon heating with a small quantity of sulfuric acid, and is thus a convenient storage form of acetaldehyde. Paraldehyde exhibits a weak narcotic effect.

paraldehyde

[pə′ral·də‚hīd] (organic chemistry) C6H12O3 Acetaldehyde polymer; colorless, flammable, toxic liquid, miscible with most organic solvents, soluble in water; melts at 12.6°C, boils at 124.5°C; used as a chemical intermediate, in medicine, and as a solvent.

paraldehyde


paraldehyde

 [pah-ral´dĕ-hīd] a sedative and hypnotic; because of its low therapeutic index and certain unpleasant side effects, its use has declined in recent years.

par·al·de·hyde

(par-al'dĕ-hīd), A cyclic polymer of acetaldehyde; a potent hypnotic and sedative, suitable for oral or rectal administration; its offensive odor limits its use. Synonym(s): paracetaldehyde

paraldehyde

(pə-răl′də-hīd′)n. A colorless liquid polymer, C6H12O3, of acetaldehyde, used as a solvent and a sedative.

par·al·de·hyde

(par-al'dĕ-hīd) A cyclic polymer of acetaldehyde; a potent hypnotic and sedative, suitable for oral or rectal administration; its offensive odor limits its use.
Synonym(s): paracetaldehyde.

paraldehyde

A rapidly acting drug used by injection to control severe excitement, delirium, mania or convulsions.

paraldehyde


  • noun

Synonyms for paraldehyde

noun a colorless liquid (a cyclic trimer of acetaldehyde) that is used as a sedative and a solvent

Synonyms

  • ethanal trimer

Related Words

  • aldehyde
随便看

 

英语词典包含2567994条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2025/1/9 8:50:01