cor ‧ ti ‧ sone /ˈkɔːtəzəʊn, ˈkɔːtɪzəʊn $ ˈkɔːrtəsoʊn/ BrE AmE noun [uncountable]
[ Date: 1900-2000 ; Origin: corticosterone type of hormone (20-21 centuries) , from cortex + sterol ( ⇨ ↑ steroid ) + -one ; because it is produced by the outer layer of a body organ ]
a ↑ hormone that is used especially in the treatment of injuries and diseases such as ↑ arthritis :
a cortisone injection