HV

HV or Hv may stand for:

• Mitochondrial DNA Haplogroup HV.
• Burkina Faso, WMO country code (from the former French name, "Haute Volta").
• Hwair, or <3, a digraph used in transliterating the Gothic alphabet.
• Heimevernet, the Norwegian home guard.
• High Voltage.
• Home Video.
• Hrvatska Vojska, the Croatian army.
• Hudson Valley
• Hybrid Vehicles.
• Transavia, IATA airline code.
• In physics and chemistry, hν is the formula for a photon's energy in reactions, e.g.

2 H₂O₂ + hν → 2 H₂O + O₂

h = Planck's constant (in J·s)

ν or f = Frequency (in Hz)

Note that ν here is actually the Greek letter nu, not the Latin letter v.

• Vickers Hardness, a hardness test.
• Humanae Vitae, a papal encyclical.
• Hinnavaatlus, an Estonian computer-oriented forum
• Hudební výchova, a Czech name for the school subject Music

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