meaning of uranium
1. An element of the chromium group, found in certain rare minerals, as pitchblende, uranite, etc. , and reduced as a heavy, hard, nickel-white metal which is quite permanent. Its yellow oxide is used to impart to glass a delicate greenish-yellow tint which is accompanied by a strong fluorescence, and its black oxide is used as a pigment in porcelain painting. Symbol U. Atomic weight 239.
2. a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons
Related Words
uranium | uranium 235 | uranium 238 | uranium ore |
