Breadcrumb Home > Dictionary > Index O ortho-cousin: Meaning and Definition of Find definitions for: or•tho-cous•in Pronunciation: (ôr"thu-kuz'un, ôr'thu-kuz"-), [key] — n. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. orthoclastic ortho-dichlorobenzene TrendingHere are the facts and trivia that people are buzzing about. Did Birds Evolve from Dinosaurs? The Twelve Dancing Princesses Current Events This Week: January 2023 African Americans by the Numbers Andersen's Fairy Tales: Contents The Celtic Twilight: A Teller of Tales ✖ Related Content Daily Word Quiz: catalpa Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language