SkyfireDict

hf   (TTS Sound)

The noun hf has 2 senses

• hafnium, Hf, atomic number 72 -- (a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals; used in filaments for its ready emission of electrons)


• high frequency, HF -- (3 to 30 megahertz)