This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Of, relating to, derived from, or consisting of cortex.

adj. Of, relating to, associated with, or depending on the cerebral cortex.

adj. Pertaining to the outer layer of an internal organ or body structure, such as the kidney or the brain.

adj. Pertaining to the cortex of a stem or root—the tissue that lies inward from the epidermis, but exterior to the vascular tissue.

adj. Belonging to, or consisting of, bark or rind; resembling bark or rind; external; outer; superficial.

Belonging to or consisting of bark or rind; resembling bark or rind; hence, external; belonging to the external covering: in anatomy, specifically applied to several enveloping or investing parts, in distinction from medullary: as, the cortical substance of the brain or kidney. See cortex.

adj. of or relating to a cortex

"This wave—known as "cortical spreading depression"—activates nerve cells as it goes, and the symptoms sufferers report typically correspond to the area of the brain the wave is passing over."

cortical epilepsy    cortical sheath    cortical substance    cortical layer    cortical paralysis   

cortex    cortico-   

cortically    adrenocortical    subcortical    thalamocortical   

external    outer    superficial    corticate    corticoid   

medullary    neuronal    neural    epithelial    hippocampal    adrenal    cerebral    synaptic    cardiac    parietal