Breadcrumb Home > Dictionary > Index R reality testing: Meaning and Definition of Find definitions for: real'ity test"ing Pronunciation: [key] — Psychiatry. Psychiatry. the objective evaluation of situations, defective in certain psychoses, that enable one to distinguish between the external and the internal worlds and between the self and the nonself. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. reality principle realization TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: minatory Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language