cortex

Meanings

1. 1
   noun

   the outer layer of an organ or body structure, especially the outer part of the brain

   The scan showed increased activity in the visual cortex.

2. 2
   noun

   the tissue between the epidermis and the central vascular region of a plant stem or root

   The root cortex stores nutrients and moves water toward the vascular tissue.

3. 3
   noun

   the softer outer portion of the lens of the eye surrounding its nucleus

   The cataract began in the cortex of the lens rather than at its center.

Common collocations

• striate cortex Adjective + noun

Borrowed from Latin cortex, 'bark, rind, or outer covering.' Anatomy and botany retained that spatial image for the outer tissue of an organ, a brain, a plant stem or root, and the lens of the eye.

Topics

External links

• Cambridge Dictionary
• Wiktionary
• Google Images