/ Dictionary / Index T tuberous root: Meaning and Definition of Find definitions for: tu'berous root' Pronunciation: [key] a true root so thickened as to resemble a tuber, but bearing no buds or eyes. See illus. under. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tuberous tubesnout Related Content Daily Word Quiz: crutiny Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language