/ Dictionary / Index T Tomonaga: Meaning and Definition of Find definitions for: To•mo•na•ga Pronunciation: (tô"mô-nä'gä), [key] — n. 1906–79, Japanese physicist: Nobel prize 1965. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tomograph tomorrow Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language