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[kawr-teks] /ˈkɔr tɛks/

noun, plural cortices
[kawr-tuh-seez] /ˈkɔr təˌsiz/ (Show IPA)
Anatomy, Zoology.


Mycology. the surface tissue layer of a fungus or lichen, composed of massed hyphal cells.
noun (pl) -tices (-tɪˌsiːz)
(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)


1650s, “outer shell, husk,” from Latin cortex “bark of a tree” (see corium). Specifically of the brain, first recorded 1741.

cortex cor·tex (kôr’těks’)
n. pl. cor·tex·es or cor·ti·ces (-tĭ-sēz’)


An experimental slow controls project at CERN.


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  • Cortex of ovary

    cortex of ovary n. The layer of the ovarian stroma lying immediately beneath the tunica albuginea, composed of connective tissue cells and fibers, among which are scattered primary and secondary follicles in various stages of development.

  • Cortic-

    cortic- pref. Variant of cortico-.

  • Cortical

    [kawr-ti-kuh l] /ˈkɔr tɪ kəl/ adjective 1. Anatomy. of, pertaining to, resembling, or consisting of . 2. Physiology. resulting from the function or condition of the . 3. Botany. of or relating to the . adj. 1670s, from Modern Latin corticalis, from cortex “bark of a tree” (see cortex). cortical cor·ti·cal (kôr’tĭ-kəl) adj.

  • Cortical artery

    cortical artery n. Any of several branches of the anterior, middle, and posterior cerebral arteries that supply the cerebral cortex.

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