The tree Dipteryx odorata, which bears the tonka bean. / The tonka bean itself.

plural of coumarou

Of or pertaining to coumaric acid or its derivatives

(organic chemistry) Any salt or ester of coumaric acid

plural of coumarate

(organic chemistry) Any of three isomeric aromatic carboxylic acids, 3-(4-hydroxyphenyl)-2-propenoic acid, found in many plants

plural of coumaric acid