hf (HyperDic hyper-dictionary)

English > 2 senses of the word *Hf / HF*:
NOUN	substance	Hf, hafnium, atomic number 72	a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals
attribute	HF, high frequency	3 to 30 megahertz

English > Hf: 2 senses > noun 1, substance
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.
Synonyms	hafnium, atomic number 72
Broader	metallic element, metal	Any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
Spanish	hafnio, número atómico 72
Catalan	hafni, Hf, número atòmic 72

English > HF: 2 senses > noun 2, attribute
Meaning	3 to 30 megahertz.
Synonym	high frequency
Part of	electromagnetic spectrum	The entire frequency range of electromagnetic waves
Broader	radio frequency	An electromagnetic wave frequency between audio and infrared
Spanish	alta frecuencia

HyperDic: hf