from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A white crystalline derivative of choline, C7H17NO3, that is released at the ends of nerve fibers in the somatic and parasympathetic nervous systems and is involved in the transmission of nerve impulses in the body.

from the GNU version of the Collaborative International Dictionary of English.

  • noun a neurotransmitter released by the transmitting dendron at autononmous synapses and at neuromuscular junctions. It is a quaternary amine with an obligatory negative counterion. The nominal formula for the hydroxide form is C7H17NO3. Structural formula (CH3)3N(+)CH2CH2.O.CO.CH3.OH(-).

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun biochemistry A neurotransmitter in humans and other animals. It is an ester of acetic acid and choline with chemical formula CH3COOCH2CH2N+(CH3)3.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a neurotransmitter that is a derivative of choline; released at the ends of nerve fibers in the somatic and parasympathetic nervous systems


Sorry, no etymologies found.


  • The most common neurotransmitter is called acetylcholine.

    You Staying Young

  • Little did I suspect then what I was able to show many years later - namely, that relaxation of arteries by acetylcholine is strictly endothelium-dependent, and that my method of preparing the strips inadvertently resulted in the mechanical removal of all the endothelial cells.

    Robert F. Furchgott - Autobiography

  • Sir Bernard Katz 'discoveries concerning the mechanism for the release of the transmitter acetylcholine from the nerve terminals at the nerve-muscle junction, under the influence of the nerve impulses, are fundamental not only for the understanding of the so-called cholinergic transmission, but are also of primary importance for our knowledge about the synaptic transmission between the nerve cells in the central nervous system.

    Physiology or Medicine 1970 - Press Release

  • In a sympathetic ganglion, the synaptic junctions, at which the acetylcholine is released by the incident preganglionic impulses, form a large part of the small amount of tissue perfused.

    Sir Henry Dale - Nobel Lecture

  • Nicotinic receptors use a neurotransmitter called acetylcholine, too.

    T.S. Wiley: Estrogen Dilemma: There Is No Dilemma When You Know the Details

  • Eat an apple or two: Apples stimulate production of the neurotransmitter acetylcholine, which is what the Alzheimer's drug Aricept also does, say University of Massachusetts researchers.

    Jean Carper: World Alzheimer's Day: 10 Tips to Prevent Alzheimer's

  • Reduces the natural relaxation and anti-inflammatory calming, memory-enhancing neurotransmitter called acetylcholine.

    The UltraMind Solution

  • Rosemary contains chemicals called acetylcholinestrase inhibitors, which prevent the breakdown of a chemical produced by the brain, called acetylcholine.

    Earl Mindell’s New Herb Bible

  • We stay awake because the hypothalamus secretes a chemical called acetylcholine that dams up the onslaught of GABA.

    You Staying Young

  • Eggs are rich in choline, a B vitamin that is a key component in the brain transmitter acetylcholine, which is crucial for memory.

    Superfoods for Babies and Children


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