Reference meaning

Hf

noun·Reference

Last updated

a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals; used in filaments for its ready emission of electrons

Related source terms

hafniumatomic number 72

Other meanings

2. noun

3 to 30 megahertz

Source and scope

This definition is reproduced from Princeton WordNet 3.0, sense 14639556-n, under the WordNet 3.0 License. It has not yet received VocabularyBase editorial review. Read the source and license details.