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 (ăt′rə-pēn′, -pĭn) also at·ro·pin (-pĭn)
A poisonous, bitter, crystalline alkaloid, C17H23NO3, obtained from belladonna and other related plants. It is used to dilate the pupils of the eyes and as an antispasmodic.

[From New Latin Atropa, genus name of belladonna, from Greek Atropos, Atropos; see Atropos.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈætrəˌpiːn; -pɪn) ,




(Pharmacology) a poisonous alkaloid obtained from deadly nightshade, having an inhibitory action on the autonomic nervous system. It is used medicinally in pre-anaesthetic medication, to speed a slow heart rate, and as an emergency first-aid counter to exposure to chemical warfare nerve agents. Formula: C17H23NO3
[C19: from New Latin atropa deadly nightshade, from Greek atropos unchangeable, inflexible; see Atropos]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈæ trəˌpin, -pɪn)

a poisonous crystalline alkaloid, C17H23NO3, obtained from belladonna or other nightshade plants, used chiefly to relieve spasms or, topically, to dilate the pupil of the eye.
[1830–40; < New Latin Atrop(a) belladonna genus < Greek átropos not turnip, inflexible; see a-6, -trope]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.atropine - a poisonous crystalline alkaloid extracted from the nightshade family; used as an antispasmodic and to dilate the eye pupil; also administered in large amounts as an antidote for organophosphate nerve agents or organophosphate insecticides
antidote, counterpoison - a remedy that stops or controls the effects of a poison
antispasmodic, antispasmodic agent, spasmolytic - a drug used to relieve or prevent spasms (especially of the smooth muscles)
belladonna - an alkaloidal extract or tincture of the poisonous belladonna plant that is used medicinally
mydriatic, mydriatic drug - a drug that causes the pupil of the eye to dilate; used to aid eye examinations
alkaloid - natural bases containing nitrogen found in plants
poison, poisonous substance, toxicant - any substance that causes injury or illness or death of a living organism
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


n atropina
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
Mae pedair o aeron y codwarth yn ddigon i ladd plentyn, a'r atropin sydd yn yr aeron sy'n lladd.
Hastaya atropin uygulanmasi sonrasi kalp atim hizi yukseldi.
Because AChE is the main target of OPs, the principles of existing therapy of acute poisoning are converged to elimination of effects of AChE inhibition by OPs, that is, administration of cholinolytics (e.g., atropin), reactivators of AChE (oximes), and anticonvulsant drugs (agonists of GABA- and antagonists of glutamate receptors); as a preventive means before the alleged poisoning, reversible AChE inhibitors can be used (e.g., pyridostigmine) [193, 194].
number mg AE/g (1) 0.68 [+ or -] 0.04 (2) 16.85 [+ or -] 1.24 (3) 6.18 [+ or -] 0.55 TPC: total phenolic content, TFC: total flavonoid content, TTRC: total terpenoid content, TAC: total alkaloid content, GAE: gallic acid equivalents, RE: rutin equivalents, CE: catechin equivalents, LE: linalool equivalents, and AE: atropin equivalents.
of Total Atropin Dose (amp) Total Average Ampules Group I 6088 119.37 Group II 1161 165.86 Group III 4833 201.38 [chi square] = 20.85, dof = 2, p < 0.001 Table 5 Mortality Improved % Expired % Group I 47 92.16% 4 7.84% Group II 6 85.71% 1 14.29% Group III 18 75.00% 6 25.00% [chi square] = 9.56, dof = 2, p < 0.01 Fig.
Iyi goren goze her gun veya haftada 2-3 gun bir damla %1 atropin damlatilarak gormenin bulaniklastirilmasi ile ambliyopisi olan gozun kullanilmaya zorlanmasi farmakolojik penalizasyon olarak adlandirilir.
Mean [+ or -] S.E Tension (gr) Baseline.Con 0.478 Baseline.Exp 0.471 Solvent.Con 0.509 Ginger.Exp 0.357 Ach.Con 0.771 Ach.Exp 0.457 Atropin.Com 0.557 Atropin.Exp 0.362 * Significant difference Note: Table made from line graph.