Xenon

n. gaseous chemical element

Xenon (IPA: ) is a chemical element that has the symbol Xe and atomic number 54. A colorless, heavy, odorless noble gas, xenon occurs in the earth's atmosphere in trace amounts. Although generally unreactive, xenon can undergo a few chemical reactions such as the formation of xenon hexafluoroplatinate, the first noble gas compound to be synthesized.
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Noun
1. a colorless odorless inert gaseous element occurring in the earth's atmosphere in trace amounts
(synonym) Xe, atomic number 54
(hypernym) chemical element, element
(substance-holonym) air

n. xenon, gaseous chemical element

n. xenon, gaseous chemical element