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1. The layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum
   - cerebral cortex, cerebral mantle, pallium
    
2. The tissue forming the outer layer of an organ or structure in plant or animal
    
3. The tissue that surrounds the lens nucleus
   - lens cortex

Derived forms: cortexes, cortices

Type of: animal tissue, neural structure, plant tissue

Antonym: medulla

Part of: cerebrum, crystalline lens, lens, lens of the eye

Encyclopedia: Cortex