Pronunciation: (pal'ē-um),[key] —n., —pl.pal•li•aPronunciation: (pal'ē-u),[key]pal•li•ums. 1. a large, rectangular mantle worn by men in ancient Greece and Rome.
2. Eccles. a. a woolen vestment worn by the pope and conferred by him on archbishops, consisting, in its present form, of a narrow ringlike band that rests on the shoulders, with two dependent bands or lappets, one in front and one behind.
b. an altar cloth; a pall.
3. Anat.the entire cortex of the cerebrum.
4. Zool.a mantle, as of a mollusk or bird.