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xenon

   Also found in: Dictionary/thesaurus, Acronyms, Encyclopedia, Wikipedia, Hutchinson 0.01 sec.
xenon /xe·non/ (ze´non) a chemical element, at. no. 54, symbol Xe. The radioactive isotope 133Xe is used in assessment of pulmonary function, lung imaging, and cerebral blood flow studies.
xe·non (znn)
n. Symbol Xe
A colorless, odorless, highly unreactive gaseous element found in minute quantities in the atmosphere and extracted commercially from liquefied air, used as an anesthetic and, in radioisotope form, for diagnostic imaging. Atomic number 54.
xenon
a chemical element, atomic number 54, atomic weight 131.30, symbol Xe. See Table 6.
xenon-133
a radioisotope of xenon having a half-life of 5.3 days and a principal gamma ray photon energy of 81 keV; used for pulmonary ventilation imaging. Symbol 113Xe.
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