1 example sentence using actinoid.
Actinoid used in a sentence
Actinoid in a sentence as a noun
But this is very much not the case with landfill, in which the lanthanoids are conveniently separated not only from one another but from the hazardous actinoids — although cigarette-lighter flints have many lanthanoids, if you're mining catalytic converters, they'll be entirely free of both thorium and lanthanum.