Definitions for HF
Random House Webster's College Dictionary
Category: Hi-Fi and Audio
* Chem. Symbol..
hafnium, Hf, atomic number 72(noun)
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(noun)
3 to 30 megahertz