cortex

cor·tex

noun \ˈkȯr-ˌteks\

plural cor·ti·ces \ˈkȯrt-ə-ˌsēz\ or cor·tex·es

Definition of CORTEX

1

a : the outer or superficial part of an organ or body structure (as the kidney, adrenal gland, or a hair); especially : cerebral cortex b : the outer part of some organisms (as paramecia)

2

a : a plant bark or rind (as cinchona) used medicinally b : the peel of any of several fruits—used especially in the writing of medical prescriptions

Illustration of CORTEX