/ Dictionary / Index T -thymia: Meaning and Definition of Find definitions for: -thymia Pronunciation: [key] a combining form used in the formation of compound words that denote mental disorders, as specified by the initial element: alexithymia; cyclothymia; dysthymia. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. thymectomy thymic Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language