Breadcrumb Home > Dictionary > Index B biological psychiatry: Meaning and Definition of Find definitions for: biolog'ical psychi'atry Pronunciation: [key] a school of psychiatric thought concerned with the medical treatment of mental disorders, esp. through medication, and emphasizing the relationship between behavior and brain function and the search for physical causes of mental illness. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. biological parent biological rhythm TrendingHere are the facts and trivia that people are buzzing about. Who's Who in the "Lord of the Rings" Roman Catholic Church Hierarchy Current Events This Week: March 2023 42 Top Western Movie Quotes Slaves in the Family User's Guide to Environmental Language ✖ Related Content Daily Word Quiz: otiose Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language