Ellagic \El*lag"ic\, a. [F., fr. galle gall (with the letters reversed).]

(Chem.) Pertaining to, or derived from, gallnuts or gallic acid; as, ellagic acid.

Ellagic acid (Chem.), a white crystalline substance, C14H8O9, found in bezoar stones, and obtained by the oxidation of gallic acid.

Source: Webster's Revised Unabridged Dictionary (1913)