English noun: atomic number 39 | |||
1. | atomic number 39 (substance) a silvery metallic element that is common in rare-earth minerals; used in magnesium and aluminum alloys | ||
Synonyms | Y, yttrium | ||
Broader (hypernym) | metal, metallic element | ||
Substance meronym | fergusonite, gadolinite, xenotime, ytterbite | ||