Webster's Revised Unabridged Dictionary · 1913

Opopanax

Opopanax , noun

[Latin, from Greek {not transcribed}; {not transcribed} vegetable juice + pa`nax, pa`nakes, a kind of plant: compare French opopanax.]

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 color, with specks of white. It has a strong smell and acrid taste, and was formerly used in medicine as an emmenagogue and antispasmodic. — Dunglison