/ Dictionary / Index P paleocortex: Meaning and Definition of Find definitions for: pa•le•o•cor•tex Pronunciation: (pā"lē-ō-kôr'teks esp. Brit. pal"ē-), [key] — n. Anat. the olfactory region of the brain. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: paleocortex (Thesaurus) paleoclimatology paleoencephalon Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language