Breadcrumb Home > Dictionary > Index O Cite octachord: Meaning and Definition of Find definitions for: oc•ta•chord Pronunciation: (ok'tu-krd"), [key] ? n. any musical instrument with eight strings. a diatonic series of eight tones. Random House Unabridged Dictionary, Copyright 1997, by Random House, Inc., on Infoplease. octa- octad TrendingHere are the facts and trivia that people are buzzing about. February 2021 Current Events: US News The Berlin Conference and the Partition of Africa The Implied Powers of Congress Noble Titles and Ranks in a Monarchy Keeping Your Brain Active in a COVID-19 World The Manchu Related Content Daily Word Quiz: nosegay Analogy of the Day: Today?s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language