Dictionary
kryp•ton
Pronunciation: (krip'ton), [key]—
n. Chem.
an inert, monatomic gaseous element, present in very small amounts in the atmosphere: used in high-power, tungsten-filament light bulbs.
Symbol: Kr;
at. wt.: 83.80;
at. no.: 36.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.