cortex

word

Definition

The outer layer of an organ, especially the brain, or the outer part of a plant stem or root.

Usage & Nuances

Used mainly in scientific or medical contexts, most often refers to the brain ('cerebral cortex'), but can also mean the outer layer of other organs or plants. Not used in everyday conversation unless discussing biology or medicine.

Example Sentences

Scientists study the cortex to understand thinking.

basic

Damage to the cerebral cortex can affect memory and behavior.

natural

The thickness of the tree's cortex protects it from insects.

natural

MRI scans let doctors see changes in the brain’s cortex.

natural

The cortex is the outer part of the brain.

basic

Plants also have a cortex in their roots.

basic