Breadcrumb Home > Dictionary > Index A Cite A.A.A.S.: Meaning and Definition of Find definitions for: A.A.A.S. Pronunciation: [key] American Association for the Advancement of Science. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: aaas (Thesaurus) A.A.A.L. Aachen TrendingHere are the facts and trivia that people are buzzing about. January 2021 Current Events: US News A History of the New Year Saying "Happy New Year!" Around the World Noble Titles and Ranks in a Monarchy The 5 Best Air Purifiers of 2020 How U.S. Presidential Elections Work Related Content Daily Word Quiz: troglodyte Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language