1. 皮层;皮质;大脑皮层
The cortex of the brain or of another organ is its outer layer.

1. the tissue that surrounds the lens nucleus

Synonym: lens cortex

2. the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum

Synonym: cerebral cortexcerebral mantlepallium

3. the tissue forming the outer layer of an organ or structure in plant or animal