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[uh-seet-l-koh-luh-nes-tuh-reys, -reyz, uh-set-, as-i-tl-] /əˌsit lˌkoʊ ləˈnɛs təˌreɪs, -ˌreɪz, əˌsɛt-, ˌæs ɪ tl-/
noun, Biochemistry
an enzyme that hydrolyzes the neurotransmitter acetylcholine: its action is blocked by nerve gases and certain drugs.
Origin of acetylcholinesterase
1945-50; acetylcholine + esterase Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for acetylcholinesterase
  • At last the screen displays a dynamic bending and flexing three-dimensional image of a body enzyme, acetylcholinesterase.
British Dictionary definitions for acetylcholinesterase


/əˈsiːtaɪlˌkəʊliːnˈɛstərˌeɪz; ˈæsɪtaɪl-/
an enzyme in nerve cells that is responsible for the destruction of acetylcholine and thus for switching off excitation of the nerve
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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acetylcholinesterase in Medicine

acetylcholinesterase a·ce·tyl·cho·lin·es·ter·ase (ə-sēt'l-kō'lə-něs'tə-rās', -rāz')
Any of various enzymes in the blood and in certain tissues that catalyze the hydrolysis of acetylcholine.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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