a yellow crystalline substance, C14H6O8, isolated from oak galls and tannins and used as a hemostatic.
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How to use ellagic acid in a sentence
It is known technically as bloom and chemically as ellagic acid.
This operation has for its object the removal of bloom (ellagic acid) and any other superfluous adherent matter.
It deposits much bloom (ellagic acid) and is largely used for brightening the dark colour produced by other tannins.Leather | K. J. Adcock
Pyrogallols yield ellagic acid (called "bloom" in the trade), which improves the waterproof qualities of leather.Leather | K. J. Adcock
Another of these substances is ellagic acid C14H6O8, a double lactone of a hexa-hydroxy-diphenyldicarboxylic acid.Animal Proteins | Hugh Garner Bennett