The inspissated juice of an umbelliferous plant (the Opoponax Chironum), brought from turkey and the East Indies in loose granules, or sometimes in larger masses, of a reddish yellow colour, with specks of white. It has a strong smell and acrid taste, and was formerly used in medicine as an emmenagogue and antispasmodic.
Origin: L, fr. Gr.; vegetable juice -, . A kind of plant: cf. F. Opopanax.