URANISCORAPHY; URANISCORRHAPHY
U`ra*nis*cor"a*phy, U`ra*nis*cor"rha*phy, n. Etym: [Gr. (Surg.)
Defn: Suture of the palate. See Staphyloraphy.
URANITE
U"ra*nite, n. Etym: [Cf. G. uranit, F. uranite.] (Min.)
Defn: A general term for the uranium phosphates, autunite, or lime uranite, and torbernite, or copper uranite.
URANITIC
U`ra*nit"ic, a. (Chem.)
Defn: Of or pertaining to uranium; containing uranium.
URANIUM
U*ra"ni*um, n. Etym: [NL., from Uranus the planet. See Uranus.]
(Chem.)
Defn: 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.
Note: Uranium was discovered in the state of an oxide by Klaproth in 1789, and so named in honor of Herschel's discovery of the planet Uranus in 1781.
URAN-OCHER; URAN-OCHRE U"ran-o`cher, U"ran-o`chre, n. Etym: [Cf. F. uranochre.] (Min.) (a) A yellow, earthy incrustation, consisting essentially of the oxide of uranium, but more or less impure.