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1. Oxford American Dictionary

   cortex

   • IPA[ˈkôrˌteks]

   美式

   • n.
     the outer layer of the cerebrum (the cerebral cortex), composed of folded gray matter and playing an important role in consciousness.；an outer layer of another organ or body part such as a kidney (the renal cortex), the cerebellum, or a hair.

   • noun: cortex, plural noun: cortices

2. • 釋義

   n.

   名詞

   • 1. the outer layer of the cerebrum (the cerebral cortex), composed of folded gray matter and playing an important role in consciousness.
   • ▪ an outer layer of another organ or body part such as a kidney (the renal cortex), the cerebellum, or a hair.
   • ▪ an outer layer of tissue immediately below the epidermis of a stem or root.