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English World dictionary. . 2014.

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  • nonfissile — onfissile adj. not fissile. Opposite of {fissile}. [WordNet 1.5] …   The Collaborative International Dictionary of English

  • nonfissile — adj. * * * …   Universalium

  • nonfissile — non•fis′sile adj …   From formal English to slang

  • nonfissile — adjective not fissile • Ant: ↑fissile * * * adj …   Useful english dictionary

  • Fertile material — is a term used to describe nuclides which generally themselves do not undergo induced fission (fissionable by thermal neutrons) but from which fissile material is generated by neutron absorption and subsequent nuclei conversions. Fertile… …   Wikipedia

  • plutonium — /plooh toh nee euhm/, n. Chem., Physics. a transuranic element with a fissile isotope of mass number 239 (plutonium 239) that can be produced from non fissile uranium 238, as in a breeder reactor. Symbol: Pu; at. no.: 94. [1940 45; < Gk Ploúton… …   Universalium

  • uranium — /yoo ray nee euhm/, n. Chem. a white, lustrous, radioactive, metallic element, occurring in pitchblende, and having compounds that are used in photography and in coloring glass. The 235 isotope is used in atomic and hydrogen bombs and as a fuel… …   Universalium

  • isotopic fractionation — ▪ chemistry       enrichment of one isotope relative to another in a chemical or physical process. Two isotopes of an element are different in weight but not in gross chemical properties, which are determined by the number of electrons. However,… …   Universalium

  • uranium processing — Introduction       preparation of the ore for use in various products.       Uranium (U), although very dense (19.1 grams per cubic centimetre), is a relatively weak, nonrefractory metal. Indeed, the metallic properties of uranium appear to be… …   Universalium

  • plutonium — plu•to•ni•um [[t]pluˈtoʊ ni əm[/t]] n. chem. phs phs a radioactive metallic transuranic element with a fissile isotope of mass number 239 that can be produced from nonfissile uranium 238 Symbol: Pu at. no.: 94. • Etymology: 1940–45; < Gk… …   From formal English to slang