Library / English Dictionary |
ATOMIC NUMBER 72
I. (noun)
Sense 1
Meaning:
A grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals; used in filaments for its ready emission of electrons
Synonyms:
Classified under:
Hypernyms ("atomic number 72" 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.)