Definition of Pallium

Noun: pallium (pallia,palliums) pa-lee-um

The layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum
- cerebral cortex, cerebral mantle, cortex
(zoology) a protective layer of epidermis in mollusks or brachiopods that secretes a substance forming the shell
- mantle
(Roman Catholic Church) vestment consisting of a band encircling the shoulders with two lappets hanging in front and back
Cloak or mantle worn by men in ancient Rome