VHF

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. 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
• Syn:
hemorrhagic fever, haemorrhagic fever, viral hemorrhagic fever, viral haemorrhagic fever
• Hypernyms:
viral infection, virus infection
• Hyponyms:
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. 30 to 300 megahertz
• Syn:
very high frequency
• Hypernyms:
radio frequency
• Part Holonyms:
electromagnetic spectrum