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Radnorshire

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• Radome

  [rey-dohm] /ˈreɪˌdoʊm/ noun 1. a dome-shaped device used to house a radar antenna. /ˈreɪdəʊm/ noun 1. a protective housing for a radar antenna made from a material that is transparent to radio waves

• Radon

  [rey-don] /ˈreɪ dɒn/ noun, Chemistry. 1. a chemically inert, radioactive gaseous element produced by the decay of : emissions produced by outgassing of rock, brick, etc. are a health hazard. Symbol: Rn; atomic number: 86; atomic weight: 222. /ˈreɪdɒn/ noun 1. a colourless radioactive element of the rare gas group, the most stable isotope of […]

• Radon gas

  noun radon Examples We have a radon gas mitigating system. Word Origin 1934

• Rad-s

  1. radians per second.

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