Breadcrumb Home > Dictionary > Index I Cite interior angle: Meaning and Definition of Find definitions for: inte'rior an'gle Pronunciation: [key] — Geom. Geom. an angle formed between parallel lines by a third line that intersects them. an angle formed within a polygon by two adjacent sides. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. interior interior decoration TrendingHere are the facts and trivia that people are buzzing about. January 2021 Current Events: US News Noble Titles and Ranks in a Monarchy Chinese New Year History, Meaning, and Celebrations The Manchu The 5 Best Air Purifiers of 2020 Inaugural Trivia Related Content Daily Word Quiz: umbrage Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language