ˈpalēəm noun
( plural pal·lia -ēə ; or palliums )
Etymology: Latin — more at pall
1.
a. : a cloak formed by draping a rectangular piece of cloth and worn by men of ancient Greece and Rome — compare palla 1
b. : a circular band of white wool with pendants of the same material in front and back worn in the Latin rite by a pope and conferred by him on archbishops as a symbol of office
c. : altar cloth , pall
2.
[New Latin, from Latin, cloak]
a. : the whole cerebral cortex covering the rest of the brain like a mantle
b. : the mantle of a mollusk, brachiopod, or bird
3. : an extended sheet of clouds