amygdalic \am`yg*dal"ic\ ([.a]m`[i^]g*d[.a]l"[i^]k [a^]s"[i^]d), n. (Chem.) An organic acid ({C6H5.CH(OH).COOH}) extracted from bitter almonds; called also {mandelic acid} and {[alpha]-Hydroxybenzeneacetic acid}. [PJC]