Breadcrumb Home > Dictionary > Index I isogloss: Meaning and Definition of Find definitions for: i•so•gloss Pronunciation: (ī'su-glos", -glôs"), [key] — n. (in the study of the geographical distribution of dialects) a line on a map marking the limits of an area within which a feature of speech occurs, as the use of a particular word or pronunciation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. isogeotherm isogon TrendingHere are the facts and trivia that people are buzzing about. Who's Who in the "Lord of the Rings" Roman Catholic Church Hierarchy Current Events This Week: March 2023 42 Top Western Movie Quotes Slaves in the Family User's Guide to Environmental Language ✖ Related Content Daily Word Quiz: otiose Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language