/ Dictionary / Index T tuberosity: Meaning and Definition of Find definitions for: tu•ber•os•i•ty Pronunciation: (t"bu-ros'i-tē, ty'-), [key] — pl. -ties. a rough projection or protuberance of a bone, as for the attachment of a muscle. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tuberosity (Thesaurus) tuberose tuberous 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