atomic number 72

Noun

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

Source: WordNet

Synonyms

hafnium hf heavy metal chemical element

Hypernyms

metal metallic element

Close letter words and terms

atomic number 7 atomic number 70 atomic number 71 atomic number 73 atomic number 74 atomic number 75