/ Dictionary / Index N neopallium: Meaning and Definition of Find definitions for: ne•o•pal•li•um Pronunciation: (nē"ō-pal'ē-um), [key] — pl. -pal•li•a -pal•li•ums. neocortex. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: neopallium (Thesaurus) neopaganism neo-Pentecostal Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language