/ Dictionary / Index U ultrasonography: Meaning and Definition of Find definitions for: ul•tra•so•nog•ra•phy Pronunciation: (ul"tru-su-nog'ru-fē, -sō-), [key] — n. a diagnostic imaging technique utilizing reflected high-frequency sound waves to delineate, measure, or examine internal body structures or organs. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ultrasonography (Thesaurus) ultrasonics ultrasound Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language