%ellagic%

a. [ F., fr. galle gall (with the letters reversed). ] (Chem.) Pertaining to, or derived from, gallnuts or gallic acid; as, ellagic acid. [ 1913 Webster ]

Ellagic acid (Chem.), a white crystalline substance, C14H8O9, found in bezoar stones, and obtained by the oxidation of gallic acid. [ 1913 Webster ]