Breadcrumb Home > Dictionary > Index A atomics: Meaning and Definition of Find definitions for: a•tom•ics Pronunciation: (u-tom'iks), [key] — n. (used with a sing. v.) Informal. the branch of physics that deals with atoms, esp. atomic energy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. atomic reactor atomic structure 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: anomie Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language