An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

A black crystalline solid (UO_{2pitchblende, carnotite, and autunite and is used chiefly as a source of nuclear energy by fission of the radioisotope uranium-235. After the → uranium hexafluoride is enriched, a fuel fabricator converts it into uranium dioxide powder and presses the powder into fuel pellets.}

→ uranium; → dioxide.