/ Dictionary / Index X x-ray therapy: Meaning and Definition of Find definitions for: x'-ray ther"apy Pronunciation: [key] — Med. Med. treatment of a disease using controlled quantities of x-rays. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. x-ray technician x-ray tube Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language