mesothorium

See also: mésothorium

English

Etymology

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)

1. (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

• Italian: mesotorio m