xenon


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xenon

 [ze´non]
a chemical element, atomic number 54, atomic weight 131.30, symbol Xe. (See Appendix 6.) The radioactive isotope 133Xe is used in assessment of pulmonary function, lung imaging, and cerebral blood flow studies.
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 133Xe.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

xe·non (Xe),

(zē'non),
A gaseous element, atomic no. 54, atomic wt. 131.29; present in minute proportion (0.087 ppm) in the dry atmosphere; produces general anesthesia in concentrations of 70%.
[G. xenos, a stranger]
Farlex Partner Medical Dictionary © Farlex 2012

xe·non

(zē'non)
A gaseous element, atomic no. 54, atomic wt. 131.29, present in minute proportion in the atmosphere; produces general anesthesia in concentrations of 70 vol.%.
[G. xenos, a stranger]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
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