T is the twentieth letter of the alphabet.
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Science and mathematics
- t, time
- T, temperature
- T, Triassic period
- In physics
- T, kinetic energy
- T, isospin
- t, top quark
- T-symmetry in particle physics
- T, Tritium
- In astronomy
- T, a cool brown dwarf class of stars
- T, an October 1-15 discovery in the provisional designation of a comet (e.g. C/1847 T1) or asteroid
- In biology
- Haplogroup T (mtDNA), a human mitochondrial DNA (mtDNA) haplogroup
- Testosterone, a steroid hormone from the androgen group
- T, thymine
- Thorax, as in T11, the eleventh thoracic vertebra
- In mathematics and logic
- In linguistics
Transportation
"The T" is the nickname for:
- Massachusetts Bay Transportation Authority
- Fort Worth Transportation Authority
- T (New York City Subway service)
- Pittsburgh Light Rail
- Oslo T-bane
- Stockholm Metro, called the "T-bana"
Finance
- T, the U.S. ticker symbol for AT&T
- Treasury (as in T-Bill, T-Bond, T-Note)
- T, a mintmark for Nantes, France
Other
- T, a perfume made by Tommy Hilfiger
See also
| Latin letter disambiguation |
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