uranium

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uranium

 [u-ra´ne-um]
a chemical element, atomic number 92, atomic weight 238.03, symbol U. (See Appendix 6.)

u·ra·ni·um (U),

(yū-rā'nē-ŭm),
A radioactive metallic element, atomic no. 92, atomic wt. 238.0289, occurring mainly in pitchblende and notable for its two isotopes: 238U and 235U (99.2745% and 0.720%, respectively, the rest being made up by 234U), 235U being the first substance ever shown capable of supporting a self-sustaining chain reaction.
[G. myth. character, Uranus]

u·ra·ni·um

(U) (yŭr-ā'nē-ŭm)
A radioactive metallic element, atomic no. 92, atomic wt. 238.0289, occurring mainly in pitchblende and notable for its two isotopes: 238U and 235U (99.2745% and 0.720%, respectively, the rest being made up by 234U), 235U being the first substance ever shown capable of supporting a self-sustaining chain reaction.
[G. myth. character, Uranus]
References in periodicals archive ?
Around 97% of the uranium used at Sellafield can be reused by the industry, with 96% of that being uranic material - which is stored at Capenhurst - and 1% plutonium which is kept at Sellafield.
The regeneration body Cumbria Vision says that in terms of economic value, if the reprocessed plutonium and uranic material was used it would save pounds 2bn of costs for converting it into a safe substance for disposal.
Invitation to tender: reconstruction and rehabilitation of a condominium building in plaski at ivana brlic ma uranic 1-2, karlovac