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VHF
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I. (noun)
Sense 1
Meaning:
30 to 300 megahertz
Synonyms:
very high frequency; VHF
Classified under:
Nouns denoting attributes of people and objects
Hypernyms ("VHF" is a kind of...):
radio frequency (an electromagnetic wave frequency between audio and infrared)
Holonyms ("VHF" is a part of...):
electromagnetic spectrum (the entire frequency range of electromagnetic waves)
Sense 2
Meaning:
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
Synonyms:
haemorrhagic fever; hemorrhagic fever; VHF; viral haemorrhagic fever; viral hemorrhagic fever
Classified under:
Nouns denoting stable states of affairs
Hypernyms ("VHF" is a kind of...):
viral infection; virus infection (infection by a virus that is pathogenic to humans)
Hyponyms (each of the following is a kind of "VHF"):
Argentine hemorrhagic fever (hemorrhagic fever with neurological signs; caused by the Junin virus)
Ebola; Ebola fever; Ebola hemorrhagic fever (a severe and often fatal disease in humans and nonhuman primates (monkeys and chimpanzees) caused by the Ebola virus; characterized by high fever and severe internal bleeding; can be spread from person to person; is largely limited to Africa)
Lassa fever (an acute contagious viral disease of central western Africa; characterized by fever and inflammation and muscular pains and difficulty swallowing; can be used as a bioweapon)
Crimea-Congo hemorrhagic fever (an infection common in Arab states caused by a bunyavirus; transmitted by a tick that thrives on sheep)
Rift Valley fever (an infection common in Africa caused by a bunyavirus; transmitted by mosquitoes or by handling infected animals)
green monkey disease; Marburg disease; Marburg hemorrhagic fever (a viral disease of green monkeys caused by the Marburg virus; when transmitted to humans it causes serious or fatal illness)
