Tankage

Webster's Dictionary of the English Language

·add. ·noun Fees charged for storage in tanks.

II. Tankage ·add. ·noun The capacity or contents of a tank or tanks.

III. Tankage ·add. ·noun The act or process of putting or storing in tanks.

IV. Tankage ·add. ·noun Waste matter from tanks; ·esp., the dried nitrogenous residue from tanks in which fat has been rendered, used as a fertilizer.