atomic number 61

Noun

Meaning

a soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium

Source: WordNet

Synonyms

erbium tantalum thulium ytterbium cerium holmium terbium PM lanthanum gadolinium samarium neodymium promethium praseodymium

Hypernyms

metal metallic element

Close letter words and terms

atomic number 59 atomic number 6 atomic number 60 atomic number 62 atomic number 63 atomic number 64