cortisone n 1: a corticosteroid hormone (trade name Cortone Acetate) normally produced by the adrenal cortex; is converted to hydrocortisone [syn: {cortisone}, {Cortone Acetate}]
cortisone \cortisone\ n. (Chem.) a corticosteroid hormone ({C21H28O5}) produced by the adrenal cortex. It is used in medicine as an antiinflammatory agent. [WordNet 1.5]