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    hf

    hf - Dictionary definition and meaning for word hf

    Definition
    (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
    Synonyms : atomic number 72 , hafnium
    Definition
    (noun) 3 to 30 megahertz
    Synonyms : high frequency
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