mesothorium

nounB2

Định nghĩa theo từ loại

Danh từ

noun

Plural noun:

mesothoriums

1.
(physics) Certain members of the decay chain of thorium, mainly isotopes of radium and actinium

Nguồn gốc từ

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).