Uranium-239
noun, Chemistry.
1.
the uranium isotope with a mass number 239. It is artificially produced by the neutron bombardment of uranium 238.
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- Uranium-dating
noun 1. a method of dating archaeological or geological specimens by determining the decay activity of the uranium in a given sample.
- Uranium-dioxide
noun, Chemistry. 1. a black, crystalline compound, UO 2 , insoluble in water, used in nuclear fuel rods, in ceramics, and pigments.
- Uranium-hexafluoride
noun, Chemistry. 1. a colorless, water-insoluble, crystalline, volatile solid, UF 6 , used in its gaseous state in separating uranium 235 from uranium. uranium hexafluoride /ˌhɛksəˈflʊəˌraɪd/ noun 1. a compound used in the process of uranium enrichment that produces fissile material for nuclear reactors and nuclear weapons. Formula: UF6
- Uranium-oxide
noun, Chemistry. 1. any of the compounds of uranium and oxygen, as UO 2 , UO 3 , U 4 O 9 , or U 3 O 8 . 2. uranium dioxide. 3. uranium trioxide.
- Uranium-series
noun, Chemistry. 1. the radioactive series that starts with uranium 238 and ends with a stable isotope of lead of mass number 206. uranium series noun 1. (physics) a radioactive series that starts with uranium-238 and proceeds by radioactive decay to lead-206