lysergic acid

ly·​ser·​gic acid | \ lə-ˈsər-jik- How to pronounce lysergic acid (audio) , (ˌ)lī- How to pronounce lysergic acid (audio) \

Definition of lysergic acid

: a crystalline acid C16H16N2O2 from ergotic alkaloids also : lsd

Examples of lysergic acid in a Sentence

Recent Examples on the Web It’s created from the lysergic acid found in ergot, which is a fungus that infects rye. Stav Dimitropoulos, SELF, 29 Apr. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'lysergic acid.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of lysergic acid

1934, in the meaning defined above

History and Etymology for lysergic acid

lysergic from lys- (in hydrolysis) + erg(ot) + -ic entry 1

Note: Word introduced by the American biochemist Walter A. Jacobs (1883-1967) and chemist Lyman C. Craig (1906-74) in "The ergot alkaloids II. The degradation of ergotinine with alkali. Lysergic acid," Journal of Biological Chemistry, vol. 104, no. 3 (March 1, 1934), pp. 547-51.

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The first known use of lysergic acid was in 1934

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lysergic acid

lysergic acid diethylamide

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Cite this Entry

“Lysergic acid.” Dictionary, Merriam-Webster, Accessed 8 Dec. 2021.

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More Definitions for lysergic acid

lysergic acid

ly·​ser·​gic acid | \ lə-ˌsər-jik- How to pronounce lysergic acid (audio) , (ˌ)lī- How to pronounce lysergic acid (audio) \

Medical Definition of lysergic acid

: a crystalline acid C16H16N2O2 that is an ergotic alkaloid also : lsd

More from Merriam-Webster on lysergic acid Encyclopedia article about lysergic acid


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