NCIt synonyms : Xenon X-133; Xenon, Isotope of Mass 133; Xenon-133; Xeneisol; Xenon (133Xe);
NCIt definition : A radioisotope of xenon, an element with 54 protons, having gamma emissions and a
physical half-life of 5.27 days. Xenon-133 is used in the study of pulmonary function
and organ blood flow.;