/ Dictionary / Index A aero: Meaning and Definition of Find definitions for: aer•o Pronunciation: (âr'ō), [key] — adj. of or for aircraft. of or pertaining to aeronautics. aero- Pronunciation: [key] a combining form meaning “air,” used in formation of compound words: aerodrome. aero. Pronunciation: [key] aeronautic; aeronautical. aeronautics. aerospace. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. aerify aerobacter Related Content Daily Word Quiz: reclusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language