actinouranium


Also found in: Thesaurus, Medical, Encyclopedia.

ac·tin·o·u·ra·ni·um

 (ăk-tĭn′ō-yo͝o-rā′nē-əm, ăk′tə-nō-)
n.
The isotope of uranium with mass number 235, fissionable with slow neutrons.

actinouranium

(ˌæktɪnəʊjʊˈreɪnɪəm)
n
(Elements & Compounds) the isotope of uranium that has a mass number of 235

uranium 235


n.
the radioactive uranium isotope having a mass number of 235 and that undergoes fission with a release of energy when bombarded with neutrons.
[1935–40]