/ Dictionary / Index A aeriform: Meaning and Definition of Find definitions for: aer•i•form Pronunciation: (âr'u-fôrm", ā-ēr'-), [key] — adj. having the form or nature of air; gaseous. unsubstantial; unreal. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: aeriform (Thesaurus) aerification aerify 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