WordNet: Th, atomic number 90, thorium
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
- hypernym metal, metallic element
- hyponym radiothorium, thorium-228
- substance holonym monazite
- substance holonym thorite
Th
- (suomi) Th (synonyymi)
atomic number 90
- (suomi) alkuainenumero 90 (synonyymi)
thorium