English noun: atomic number 59 | |||
1. | atomic number 59 (substance) a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process | ||
Synonyms | Pr, praseodymium | ||
Broader (hypernym) | metal, metallic element | ||
Substance meronym | bastnaesite, bastnasite, monazite | ||