syrupy liquid or crystalline colourless unsaturated carboxylic acid
See full dictionary entry for tiglic
tiglic acid in British English
(ˈtɪɡlɪk)
noun
a syrupy liquid or crystalline colourless unsaturated carboxylic acid, with the trans-configuration, found in croton oil and used in perfumery; trans-2-methyl-2-butenoic acid. Formula: CH3CH:C(CH3)COOH
Word origin
C19 tiglic, from New Latin phrase Croton tiglium (name of the croton plant), of uncertain origin
tiglic acid in American English
(ˈtɪglɪk)
a fragrant, poisonous, monobasic acid, CH3CH:C(CH3)COOH, usually derived from croton oil and used in perfumes, flavors, etc.
Word origin
< ModL tiglium, croton-oil plant < Gr tilos, thin feces (the seeds have a cathartic effect) < IE *ti-, var. of base *ta-, to melt > thaw