PROMETHIUM

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does promethium mean? 

• PROMETHIUM (noun)
  The noun PROMETHIUM has 1 sense:

1. 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

  Familiarity information: PROMETHIUM used as a noun is very rare.

 Dictionary entry details 

• PROMETHIUM (noun)

Sense 1

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

Classified under:

Nouns denoting substances

Synonyms:

atomic number 61; Pm; promethium

Hypernyms ("promethium" is a kind of...):

metal; metallic element (any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.)