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A pungent alkaloid, C18H27NO3, derived from certain capsicums that is a strong irritant to skin and mucous membranes and is used in some topical pain relievers and in pepper sprays.

[Alteration (perhaps influenced by Latin capsa, box) of earlier capsicin : capsic(um) + -in.]
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.


(Biochemistry) a colourless crystalline bitter alkaloid found in capsicums and used as a flavouring in vinegar and pickles. Formula: C18H27O3N
[C19 capsicine, from capsicum + -ine2; modern form refashioned from Latin capsa box, case + -in]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(kæpˈseɪ ə sɪn)

a colorless, crystalline, bitter compound, C18H27NO3, present in capsicum.
[1885–90; earlier capsicine= capsic (um) + -ine2]
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.capsaicin - colorless pungent crystalline compound derived from capsicum; source of the hotness of hot peppers of the genus Capsicum such as chili and cayenne and jalapeno
capsicum, capsicum pepper plant, pepper - any of various tropical plants of the genus Capsicum bearing peppers
chemical irritant - a substance producing irritation
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


n capsaicina
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
Its capsaicin content has a positive effect on the genes controlling blood sugar levels and inhibits the activity of enzymes that break down sugar in the blood, according to ( Healthline.
It harnesses the natural analgesic power of capsaicin to provide durable and targeted pain relief, with onset of response by the second day after injection.
Chilies are spicy because they contain a chemical called capsaicin (kap-SAY-uh-suhn).
Chili peppers comprise a group of fat-soluble phenols described as 'capsaicinoids', including capsaicin, dihydrocapsaicin, nordihydrocapsaicin, homocapsaicin, and homodihydrocapsaicin.
Our study suggests that the natural compound capsaicin from chilli peppers could represent a novel therapy to combat metastasis in lung cancer patients," said Jamie Friedman.
Summary: Capsaicin to suppresses lung cancer metastasis by inhibiting activation of the protein Src
The active ingredient of cayenne is capsaicin which is responsible for the pungent and irritating effect of the pepper.
"It consists of several safe, nonactive ingredients that enhance the tolerability and effectiveness of the naturally occurring, Food and Drug Administration-recognized, topical analgesic capsaicin. PainBloc24 contains the highest concentration of capsaicin allowed by FDA without a prescription.
Averitas Pharma will be commercialising the pain patch Qutenza (8% capsaicin) for Grunenthal in the US.
German science-focused pharmaceutical company Grunenthal revealed on Monday that it has acquired additional global commercial rights for the dermal pain patch Qutenza (8% capsaicin) from Acorda Therapeutics Inc (USA).
Several animal and laboratory studies have shown that capsaicin - the compound that gives chilli peppers its hot sensation- can help stop sickness before it starts.