Dictionary![]() ![]() xe•nonPronunciation: (zē'non, zen'on), [key] —n. Chem. a heavy, colorless, chemically inactive, monatomic gaseous element used for filling radio, television, and luminescent tubes. Symbol: Xe; at. wt.: 131.30; at. no.: 54. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
|