Breadcrumb Home > Dictionary > Index B Cite behavioral science: Meaning and Definition of Find definitions for: behav'ioral sci'ence Pronunciation: [key] a science or branch of learning, as psychology or sociology, that derives its concepts from observation of the behavior of living organisms. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. behavior behaviorism TrendingHere are the facts and trivia that people are buzzing about. January 2021 Current Events: US News The Holocaust (1933–1945) Chinese New Year History, Meaning, and Celebrations Noble Titles and Ranks in a Monarchy The 5 Best Air Purifiers of 2020 Inaugural Trivia Related Content Daily Word Quiz: subrosa Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language