Assertion: hafnium | /r/HasAspect | 1 sense
Facets:
Source sentences:
text: The noun HAFNIUM has 1 sense: 1. a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals; used in filaments for its ready emission of electrons Familiarity information: HAFNIUM used as a noun is very rare.