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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.]


(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]


(kæpˈseɪ ə sɪn)

a colorless, crystalline, bitter compound, C18H27NO3, present in capsicum.
[1885–90; earlier capsicine= capsic (um) + -ine2]
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


n capsaicina
References in periodicals archive ?
The Effect of Capsaicine in Human Pulp Fibroblasts, in the Production of [PGE.sub.2] and Proinflammatory Cytokines is associated with Ethanol
Un debat capsaicine a la mesure de tous les ingredients de la rivalite depuis cette fameuse [beaucoup moins que]affaire 107[beaucoup plus grand que] a ce 106e classico (championnat et coupe) depuis 1962.
Pour l'HAV dite « refractaire », d'autres traitements peuvent etre proposes : la capsaicine et resiniferatoxine, la toxine botulinique, l'administration electromotrice de medicaments (EMDA), l'electrostimulation transcutanee du nerf tibial posterieur (TENS) et la neuromodulation sacree.