Sinonim thorium-228

English Thesaurus

1. radioactive isotope of thorium with mass number 228 (noun.substance)

hypernym	:	atomic number 90, th, thorium,
definition	:	a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands (noun.substance)