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cortex - 8 dictionary results

cor⋅tex

[kawr-teks]
–noun, plural -ti⋅ces [-tuh-seez] .
1. Anatomy, Zoology.
a. the outer region of an organ or structure, as the outer portion of the kidney.
b. the cerebral cortex.
2. Botany.
a. the portion of a stem between the epidermis and the vascular tissue; bark.
b. any outer layer, as rind.
3. Mycology. the surface tissue layer of a fungus or lichen, composed of massed hyphal cells.

Origin:
1650–60; < L: bark, rind, shell, husk
cor·tex   (kôr'těks')   
n.   pl. cor·ti·ces (-tĭ-sēz') or cor·tex·es
  1. Anatomy
    1. The outer layer of an internal organ or body structure, as of the kidney or adrenal gland.
    2. The outer layer of gray matter that covers the surface of the cerebral hemisphere.
  2. Botany The region of tissue in a root or stem lying between the epidermis and the vascular tissue.
  3. An external layer, such as bark or rind.

[Latin, bark; see sker-1 in Indo-European roots.]

Cortex

Cor"tex\ (k?r"t?ks), n.; pl. Cortices (-t?-s?z). [L., bark. Cf. Cork.]

1. Bark, as of a tree; hence, an outer covering.

2. (Med.) Bark; rind; specifically, cinchona bark.

3. (Anat.) The outer or superficial part of an organ; as, the cortex or gray exterior substance of the brain.

cortex 
1653, from L. "bark of a tree." Specifically of the brain, first recorded 1741.

Main Entry: cor·tex
Pronunciation: 'kor-"teks
Function: noun
Inflected Form: plural cor·ti·ces /'kort-&-"sEz/ or cor·tex·es
1 a : the outer or superficial part of an organ or body structure (as the kidney, adrenal gland, or a hair); especially : the outer layer of gray matter of the cerebrum and cerebellum b : the outer part of some organisms (as paramecia)
2 a : a plant bark or rind (as cinchona) usedmedicinally b : the peel of any of several fruits —used especially in the writing of medical prescriptions

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

  1. The outer layer of an internal organ or body structure, as of the kidney.
  2. The cerebral cortex.

cortex   (kôr'těks')  Pronunciation Key 
  1. The outer layer of an organ or body part, such as the cerebrum or the adrenal glands.
  2. 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.

Cortex
An experimental slow controls project at CERN.
(1994-11-30)

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