Home › Words › R › radiouraniumradiouraniumradiouranium means radioactive uranium.Among words judged in Lexicurio's Arena, radiouranium ranks #37,353 of 42,817 for Qualifying.EtymologyFrom radio- + uranium.nounradioactive uranium.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.uranious 72% match — Of or containing uranium. vs radiouranium →radioruthenium 72% match — radioactive ruthenium. vs radiouranium →transuranium 69% match — transuranic vs radiouranium →radionuclide 66% match — a radioactive nuclide vs radiouranium →uranite 65% match — A dark, lustrous, heavy mineral, a source of uranium and radium. vs radiouranium →urania 65% match — Any of several impure mixtures of uranium oxides. vs radiouranium →radioactive 64% match — Exhibiting radioactivity. vs radiouranium →radiotechnetium 64% match — radioactive technetium. vs radiouranium →