What is the meaning of Cortisone?

A corticosteroid hormone, closely related to corticosterone, produced by the adrenal cortex. One of the glucocorticoids, it is also made synthetically for use as an anti-inflammatory and antiallergy agent. 17-hydroxy-11-dehydrocorticosterone, with formula C21H28O5.

cortisone

cortisone

Source: wiktionary.org