/ Dictionary / Index A Aeria: Meaning and Definition of Find definitions for: Aer•i•a Pronunciation: (ēr'ē-u), [key] — n. an area in the northern hemisphere of Mars. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. aeri- aerial Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language