1. (

• cerebral_cortex ,
• cerebral_mantle ,
• pallium ,
• cortex ,

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

2. (

• cortex

) the tissue forming the outer layer of an organ or structure in plant or animal ;

3. (

• lens_cortex ,
• cortex ,

) the tissue that surrounds the lens nucleus ;