Noun vhf has 2 senses
  1. hemorrhagic fever, haemorrhagic fever, viral hemorrhagic fever, viral haemorrhagic fever, VHF - a group of illnesses caused by a viral infection (usually restricted to a specific geographic area); fever and gastrointestinal symptoms are followed by capillary hemorrhage
    --1 is a kind of viral infection, virus infection
    --1 has particulars:
     Argentine hemorrhagic fever; Ebola hemorrhagic fever, Ebola fever, Ebola; Lassa fever; Crimea-Congo hemorrhagic fever; Rift Valley fever; Marburg disease, Marburg hemorrhagic fever, green monkey disease
  2. very high frequency, VHF - 30 to 300 megahertz
    --2 is a kind of radio frequency
    --2 is a part of electromagnetic spectrum
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