/ Dictionary / Index T Thomasina: Meaning and Definition of Find definitions for: Thom•a•si•na Pronunciation: (tom"u-sē'nu), [key] — n. a female given name. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Thomas Aquinas Thomas of Erceldoune Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language