• (pl. ) of Pallium
pallia 1. A cloak or mantle worn by men in ancient Rome. 2. Vestment consisting of a band encircling the shoulders with two lappets hanging in front and back (Roman Catholic Church). 3. In zoology, a protective layer of epidermis in mollusks or brachiopods that secretes a substance forming the shel. 4. The layer of unmyelinated neurons (the gray m...