| X | the therapeutic use of X rays |
|---|---|
| X | a vacuum tube containing a metal target onto which a beam of electrons is directed at high energy for the generation of X rays |
| X | obtaining images by the use of X rays |
| X | SCID in male children resulting from mutation of a gene that codes for a protein on the surface of T cells that allows them to develop a growth factor receptor |
| X | an antianxiety agent (trade name Xanax) of the benzodiazepine class |
| X | a salt or ester of xanthic acid |
| X | xanthoma of the eyelids |
| X | excess carotene in the blood stream |
| X | any of a class of unstable organic acids containing sulphur |
| X | crystalline oxidation product of the metabolism of nucleoproteins |
| X | coarse herbs having small heads of greenish flowers followed by burrs with hooked bristles |
| X | a skin problem marked by the development (on the eyelids and neck and back) of irregular yellow nodules |