- Anatomy, Zoology.
- the outer region of an organ or structure, as the outer portion of the kidney.
- the cerebral cortex.
- the portion of a stem between the epidermis and the vascular tissue; bark.
- any outer layer, as rind.
- Mycology. the surface tissue layer of a fungus or lichen, composed of massed hyphal cells.
Origin of cortex
Examples from the Web for cortex
Brain death implies the complete and permanent absence of neurological function in the cortex and the brainstem.Families and Physicians Debate the True Meaning of Brain Death
Dr. Anand Veeravagu, MD, Richard Joseph
January 14, 2014
LSD affects the gating process—so much more information is sent to the cortex to be processed.Is Tripping on Acid to Blame for Angus T. Jones’s Meltdown?
November 30, 2012
Don't know how it works, probably tranquilizers and some of the cortex drugs.Planet of the Damned
"And men, I presume, think with their cortex," interposed the cool voice of Ulick.Painted Veils
The bony trabeculae and the cortex are destroyed only secondarily.Surgery, with Special Reference to Podiatry
The cortex is red, and much thinner than in the mealy sorts.Cooley's Practical Receipts, Volume II
Unpredictable: extra fingers or toes or a double dose of cortex?Special Delivery
Damon Francis Knight
- 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)
- the unspecialized tissue in plant stems and roots between the vascular bundles and the epidermis
- the outer layer of a part such as the bark of a stem
Word Origin and History for cortex
1650s, "outer shell, husk," from Latin cortex "bark of a tree" (see corium). Specifically of the brain, first recorded 1741.
- The outer layer of an internal organ or body structure, as of the kidney.
- The cerebral cortex.
- The outer layer of an organ or body part, such as the cerebrum or the adrenal glands.
- The region of tissue lying between the epidermis (the outermost layer) and the vascular tissue in the roots and stems of plants. It is composed of collenchyma, parenchyma, and sclerenchyma. In roots the cortex transfers water and minerals from the epidermis to the vascular tissue, which distributes them to other parts of the plant. The cortex also provides structural support and stores food manufactured in the leaves. See illustration at xylem.