| 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. |
cortical cor·ti·cal (kôr'tĭ-kəl)
adj.
Of, relating to, derived from, or consisting of cortex.
Of, relating to, associated with, or depending on the cerebral cortex.