Tau (Disambiguation)
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Tau (Τ or τ) is the 19th letter of the Greek alphabet.
Tau may also refer to:
Mathematics
- Tau (mathematical constant), a constant equal to 2π (6.28318...)
Science and technology
- TAU (spacecraft), a proposal to send a space probe to a thousand units from the Earth
- Tau (particle), also called Tau lepton, an elementary particle
- Tau emerald, a species of dragonfly
- Tau neutrino a particle
- Tau protein, a biochemical protein
- Tau, the standard astronomical abbreviation for Taurus (constellation)
Other