from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Of, relating to, derived from, or consisting of cortex.
  • adj. Of, relating to, associated with, or depending on the cerebral cortex.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • 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.

from the GNU version of the Collaborative International Dictionary of English

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

from The Century Dictionary and Cyclopedia

  • 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.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. of or relating to a cortex


from Wiktionary, Creative Commons Attribution/Share-Alike License

From Latin cortex ("bark").


  • The term cortical column is also often used in non-ontogenetic contexts, thereby broadening its meaning with respect to the more precise

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  • The term cortical column is also often used in non-ontogenetic contexts (for review on functional aspects, see

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  • 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.

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  • Studies show that being in a state of love increases your brain power and clarity through a physiological response called cortical facilitation.

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  • Therefore, Mrs. Schiavo had what's called cortical blindness.

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  • The parts dipping in between the pyramids are named the renal columns (Bertini), while the portions which connect the renal columns to each other and intervene between the bases of the pyramids and the fibrous tunic are called the cortical arches (indicated between A and A’ in Fig. 1127).

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  • These are the follicles in their earliest condition, and the layer where they are found has been termed the cortical layer.

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  • Anatomy shows where in the brains these first principles are; it teaches that there are two brains; that these are continued from the head into the spinal column; that they consist of two substances, called cortical substance and medullary substance; that cortical substance consists of innumerable gland-like forms, and medullary substance of innumerable fiber-like forms.

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  • Researchers at three U.S. institutions have been studying a new form of brain stimulation called cortical brain stimulation, with promising results. Depression

  • Each bone is made up of a thick outer shell known as cortical bone and a strong inner mesh of trabecular bone, which looks like a honeycomb.

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