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mesothorium. In DICTIOUS you will not only get to know all the dictionary meanings for the word
mesothorium, but we will also tell you about its etymology, its characteristics and you will know how to say
mesothorium in singular and plural. Everything you need to know about the word
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English
Etymology
From meso- + thorium. Probably so-called because these two isotopes (228Ra and 228Ac) are, in the decay chain, intermediate between normal thorium (232Th) and radiothorium (228Th).
Noun
mesothorium (plural mesothoriums)
- (physics) Certain members of the decay chain of thorium, mainly isotopes of radium and actinium
Usage notes
Mesothorium I is radium-228. Mesothorium II is actinium-228.
Translations
product of radioactive decay of thorium