XRT Views 12 meanings found XRT is used to refer to various radiation‑related practices and roles, especially in medical therapy and imaging, as well as to a type of X‑ray telescope in scientific research. Medical eXternal Radio-Therapy X-ray Therapy Miscellaneous X Ray Topography X ray Tran X ray transient Governmental Xtremely Rough Terrain Academic & Science X-Ray Telescope Xray Telescope Computing Xtremely Rugged Tablet Xtreme Rugged Technology Business Ex-Rights X-Ray Technician