corˈtical adjective

1. Relating to the cortex
2. External

corˈticāte or corˈticāted adjective

Provided with bark

corticāˈtion noun

cortiˈcolous adjective (biology)

Growing or living on the bark of trees, etc

corticosteroid /kör-tik-ō-stēˈroid or sterˈ/ or corˈticoid noun

1. Any steroid hormone, eg cortisone, synthesized by the adrenal cortex
2. A group of drugs derived from or similar to naturally produced corticosteroid hormones

corticosterone /kör-ti-kosˈtə-rōn/ noun

A glucocorticoid secreted by the adrenal cortex

corticotrophin /kör-tik-ōˈtrof-in/ noun

Adrenocorticotrophin (ACTH)