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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 ?
TOPICAL MEDICATIONS AT A GLANCE Type Examples How They Work Precautions Counterirritants BenGay, Create a minor Do not use on (rubefacients) Capzasin-P, pain or broken skin or Flexall, irritation to cover medicine Icy Hot, counteract more with an occlusive Zostrix severe pain bandage; do not use with heating pads; avoid using before or right after vigorous exercise NSAIDs Aspercreme, Block Do not use if (salicylates) Myoflex, inflammation to allergic to Sportscreme relieve pain aspirin; avoid using on broken skin Anesthetics Lanacane, Block Can irritate broken Solarcaine, transmission of skin; use on small pain signals areas
That transaction also involved the sale of such other Thompson products as Capzasin-P, Capzasin-HP and Arthritis Hot.
For example, Thompson Medical Co.'s Capzasin-P is being promoted through national television commercials run during programs favored by older viewers.