Definition, Meaning & Synonyms

cortex

noun
/ˈkɔːr.tɛks/
Definition
The outer layer of an organ or structure, especially in the brain or a plant.
Examples
  • The cerebral cortex plays a crucial role in processing sensory information.
  • The outer cortex of the kidney contains nephrons crucial for filtering blood.
  • In plants, the cortex stores food and helps in the exchange of gases.
Meaning
In the context of the brain, the cortex is responsible for many higher-level functions, such as thought, perception, and voluntary movement. In plants, the cortex serves as a protective layer and is involved in the transport of substances.
Synonyms
  • outer layer
  • shell
  • covering