pallium vs zoology

pallium and zoology both are nouns.

Word	Noun	Adjective	Verb	Adverb
pallium	Yes	No	No	No
zoology	Yes	No	No	No

pallium (noun)	zoology (noun)
cloak or mantle worn by men in ancient Rome	the branch of biology that studies animals
(Roman Catholic Church) vestment consisting of a band encircling the shoulders with two lappets hanging in front and back	all the animal life in a particular region or period
(zoology) a protective layer of epidermis in mollusks or brachiopods that secretes a substance forming the shell
the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum