Uranium

Theme list: uranium with definitions

40 entries

FRONT	WORD	BACK	DEFINITION
—	CURITE	S	[n. -S] [Wiktionary - Sense 1] An orthorhombic-dipyramidal mineral containing hydrogen, lead, oxygen, and uranium.
—	URANIA	S	[n. -S] [Wiktionary - Sense 1] Any of several impure mixtures of uranium oxides.
P	URANIC	—	[a.] [Wiktionary - Sense 1] Containing uranium in higher valences than uranous compounds.
—	URANYL	S	[n. -S] [Wiktionary - Sense 1] The divalent radical UO₂²⁺, conveniently regarded as a residue of many uranium compounds.
—	GUMMITE	S	[n. -S] [Wiktionary - Sense 1] A yellow, amorphous mineral, a mixture of oxides and silicates of uranium, formed by weathering of pitchblende.
—	THORITE	S	[n. -S] [Wiktionary - Sense 1] A radioactive mineral, composed mostly of thorium silicate (ThSiO₄), along with silicates of uranium and the rare earths.
—	URANIAS	—	[n. -S] [Wiktionary - Sense 1] Any of several impure mixtures of uranium oxides.
—	URANIDE	S	[n. -S] [Wiktionary - Sense 1] Any of the transuranium elements immediately following uranium in the periodic table.
—	URANITE	S	[n. -S] [Wiktionary - Sense 1] A dark, lustrous, heavy mineral, a source of uranium and radium.
—	URANIUM	S	[n. -S] · a radioactive element
—	URANOUS	—	[a.] [Wiktionary - Sense 1] Containing uranium in lower valences than uranic compounds.
—	ACTINIUM	S	[n. -S] [Wiktionary - Sense 1] A radioactive, metallic chemical element (symbol: Ac) with an atomic number of 89; found in uranium ores.
—	AUTUNITE	S	[n. -S] · a mineral
—	CALUTRON	S	[n. -S] [Wiktionary - Sense 1] A form of mass spectrometer used to separate the isotopes of uranium.
—	EUXENITE	S	[n. -S] [Wiktionary - Sense 1] A dark brown lustrous mineral that is a mixed oxide of cerium, erbium, titanium, uranium, yttrium and other more common metals, with the chemical formula (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆.
—	SCANDIUM	S	[n. -S] [Wiktionary - Sense 1] A metallic chemical element, atomic number 21, obtained from some uranium ores; it is a transition element.
—	URANIDES	—	[n. -S] [Wiktionary - Sense 1] Any of the transuranium elements immediately following uranium in the periodic table.
—	URANITIC	—	[n. -S] [Wiktionary - Sense 1] Of, pertaining to, or containing uranium
—	URANIUMS	—	[n. -S] [Wiktionary - Sense 1] plural of uranium
—	CARNOTITE	S	[n. -S] [Wiktionary - Sense 1] A yellow mineral that is a potassium uranyl vanadate that is a major ore of uranium, with the chemical formula K₂(UO₂)₂(VO₄)₂·3H₂O.
—	SEMIMETAL	S	[n. -S] · © an element possessing metallic properties in an inferior degree and not malleable, as arsenic, antimony, bismuth, molybdenum, uranium, etc~.
—	URANINITE	S	[n. -S] [Wiktionary - Sense 1] Any of several brownish-black forms of uranium dioxide, UO₂, (especially pitchblende) that is the chief ore of uranium; it is isomorphous with thorianite.
—	CARNOTITES	—	[n. -S] [Wiktionary - Sense 1] A yellow mineral that is a potassium uranyl vanadate that is a major ore of uranium, with the chemical formula K₂(UO₂)₂(VO₄)₂·3H₂O.
—	PROMETHIUM	S	[n. -S] · a radioactive element of the lanthanide series artificially produced by the fission of uranium. Symbol: Pm; atomic no: 61; half-life of most stable isotope, 145Pm: 17.7 years; valency: 3; melting pt: 1042°C; boiling pt: 2460°C (approx~.)
—	SAMARSKITE	S	[n. -S] · a velvety black mineral of complex composition occurring in pegmatites: used as a source of uranium and certain rare earth elements
—	SEMIMETALS	—	[n. -S] · © an element possessing metallic properties in an inferior degree and not malleable, as arsenic, antimony, bismuth, molybdenum, uranium, etc~.
—	THORIANITE	S	[n. -S] [Wiktionary - Sense 1] A radioactive mineral containing thorium dioxide (ThO₂) plus oxides of uranium, lanthanum, cerium neodymium and praseodymium in smaller quantities.
—	URANINITES	—	[n. -S] [Wiktionary - Sense 1] Any of several brownish-black forms of uranium dioxide, UO₂, (especially pitchblende) that is the chief ore of uranium; it is isomorphous with thorianite.
—	YELLOWCAKE	S	[n. -S] [Wiktionary - Sense 1] A concentrated form of uranium ore containing a mixture of oxides.
—	PITCHBLENDE	S	[n. -S] [Wiktionary - Sense 1] Naturally-occurring uranium oxide, a variety of the mineral uraninite.
—	PROMETHIUMS	—	[n. -S] · a radioactive element of the lanthanide series artificially produced by the fission of uranium. Symbol: Pm; atomic no: 61; half-life of most stable isotope, 145Pm: 17.7 years; valency: 3; melting pt: 1042°C; boiling pt: 2460°C (approx~.)
—	SAMARSKITES	—	[n. -S] · a velvety black mineral of complex composition occurring in pegmatites: used as a source of uranium and certain rare earth elements
—	THORIANITES	—	[n. -S] [Wiktionary - Sense 1] A radioactive mineral containing thorium dioxide (ThO₂) plus oxides of uranium, lanthanum, cerium neodymium and praseodymium in smaller quantities.
—	TRANSURANIC	S	[n. -S] [Wiktionary - Sense 1] Of an element: lying beyond uranium in the periodic table; having an atomic number greater than 92.
—	YELLOWCAKES	—	[n. -S] [Wiktionary - Sense 1] A concentrated form of uranium ore containing a mixture of oxides.
—	PITCHBLENDES	—	[n. -S] [Wiktionary - Sense 1] Naturally-occurring uranium oxide, a variety of the mineral uraninite.
—	PROTACTINIUM	S	[n. -S] · a toxic radioactive metallic element that occurs in uranium ores and is produced by neutron irradiation of thorium. Symbol: Pa; atomic no: 91; half-life of the most stable isotope, 231Pa: 32 500 years; valency: 4 or 5; relative density: 15.37 (calc~.); melting pt: 1572°C Former name: protoactinium~
—	TRANSURANICS	—	[n. -S] [Wiktionary - Sense 1] Of an element: lying beyond uranium in the periodic table; having an atomic number greater than 92.
—	TRANSURANIUM	—	[a.] · Derivative of transuranic «(of an element) having an atomic number greater than that of uranium»
—	PROTACTINIUMS	—	[n. -S] · a toxic radioactive metallic element that occurs in uranium ores and is produced by neutron irradiation of thorium. Symbol: Pa; atomic no: 91; half-life of the most stable isotope, 231Pa: 32 500 years; valency: 4 or 5; relative density: 15.37 (calc~.); melting pt: 1572°C Former name: protoactinium~

40 entries