1 entry 1 source
Mesothorium
Open directlyWebster's 1828 Dictionary · 1828
Part of speech: noun (n.)
A radioactive product intermediate between thorium and radiothorium, with a period of 5.5 years.
1 entry 1 source
Part of speech: noun (n.)
A radioactive product intermediate between thorium and radiothorium, with a period of 5.5 years.