Breadcrumb Home > Dictionary > Index O Orionids: Meaning and Definition of Find definitions for: O•ri•o•nids Pronunciation: (u-rī'u-nidz, ôr"ē-ō'-, ōr"-), [key] — n. (used with a pl. v.) Astron. a collection of meteors comprising a meteor showervisible during October, and having its apparent origin in the constellation Orion. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Orion Orion Nebula TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: pentimento Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language