pallium

  1. noun
    cloak or mantle worn by men in ancient Rome
  2. noun
    (Roman Catholic Church) vestment consisting of a band encircling the shoulders with two lappets hanging in front and back
  3. noun
    the layer of unmyelinated neurons (the gray matter) forming the cortex of the cerebrum
  4. noun
    (zoology) a protective layer of epidermis in mollusks or brachiopods that secretes a substance forming the shell