ˈträpik- noun
Etymology: tropic International Scientific Vocabulary, from atropic of or relating to atropine, from atrop- (in atropine ) + -ic
: a crystalline acid HOCH 2 CH(C 6 H 5 )COOH known in dextrorotatory, levorotatory, and racemic forms of which the last is obtained by hydrolysis of atropine and various other alkaloids or by synthesis : α-phenyl-hydracrylic acid