|an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.|
|the offspring of a zebra and a donkey.|
|—n , pl -tices|
|1.||anatomy the outer layer of any organ or part, such as the grey matter in the brain that covers the cerebrum (cerebral cortex) or the outer part of the kidney (renal cortex)|
|a. the unspecialized tissue in plant stems and roots between the vascular bundles and the epidermis|
|b. the outer layer of a part such as the bark of a stem|
|[C17: from Latin: bark, outer layer]|
cortical cor·ti·cal (kôr'tĭ-kəl)
Of, relating to, derived from, or consisting of cortex.
Of, relating to, associated with, or depending on the cerebral cortex.