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T, t

[tee] /ti/
noun, plural T's or Ts, t's or ts.
1.
the 20th letter of the English alphabet, a consonant.
2.
any spoken sound represented by the letter T or t, as in tub, but, or butter.
3.
something having the shape of a T .
4.
a written or printed representation of the letter T or t.
5.
a device, as a printer's type, for reproducing the letter T or t.
Idioms
6.
to a T, exactly; perfectly:
That job would suit you to a T.
Also, to a tee.

T

[tee] /ti/
noun, (sometimes lowercase)
1.

T

1.
2.
Electricity. tesla; teslas.
3.
Physics. temperature.

T

Symbol.
1.
the 20th in order or in a series, or, when I is omitted, the 19th.
2.
(sometimes lowercase) the medieval Roman numeral for 160.
Compare Roman numerals.
3.
surface tension.
4.
Biochemistry.
  1. threonine.
  2. thymine.
5.
Photography, T number.
6.
Physics.
  1. tau lepton.
  2. time reversal.
7.
the launching time of a rocket or missile:
T minus two.

T2

1.

t

Statistics.
1.
a random variable having Student's t distribution.
2.
the statistic employed in Student's t-test.

't

1.
a shortened form of it, before or after a verb, as in 'twas, 'tis, do't, see't.

T-

1.
U.S. Military. (in designations of aircraft) trainer:
T-11.

t-

1.
Chemistry, tertiary.

-t

1.
variant of -ed used in forming the past tense or past participle of certain verbs, usually occurring when the final consonant of the stem is voiceless, a lateral, or a nasal and there is internal vowel change in the root:
slept; felt; dreamt.

T.

1.
tablespoon; tablespoonful.
2.
3.
4.

t.1

1.
in the time of.
Origin
< Latin tempore

t.2

1.
Football. tackle.
2.
taken from.
3.
tare.
4.
teaspoon; teaspoonful.
6.
7.
Grammar, tense.
8.
9.
time.
10.
tome.
11.
ton.
12.
town.
13.
14.
15.
16.
troy.

tau

[tou, taw for 1, 2, 4; tahv, tawv for 3] /taʊ, tɔ for 1, 2, 4; tɑv, tɔv for 3/
noun
1.
the 19th letter of the Greek alphabet (T, τ).
2.
the consonant sound represented by this letter.
3.
tav.
4.
Also, tauon [tou-on] /ˈtaʊ ɒn/ (Show IPA). Physics. tau lepton.
5.
Also called tau protein. Biochemistry. a protein that is an important component of nerve cells, helping to maintain their function and structure: in the brain, distortions in the protein’s molecular shape is associated with the onset of Alzheimer’s disease.
Origin
1250-1300; Middle English < Latin < Greek taû < Semitic; cf. tav
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for t

t

/tiː/
noun (pl) t's, T's, Ts
1.
the 20th letter and 16th consonant of the modern English alphabet
2.
a speech sound represented by this letter, usually a voiceless alveolar stop, as in tame
3.
  1. something shaped like a T
  2. (in combination): a T-junction
4.
to a T, in every detail; perfectly: the work suited her to a T

t

symbol
1.
tonne(s)
2.
troy (weight)
3.
(statistics) distribution
4.
(statistics) See Student's t

T

symbol
1.
absolute temperature
2.
tera-
3.
(chem) tritium
4.
(biochem) thymine
5.
tesla
6.
surface tension
abbreviation
7.
Thailand (international car registration)

T-

abbreviation
1.
trainer (aircraft): T-37

t.

abbreviation
1.
(commerce) tare
2.
teaspoon(ful)
3.
temperature
4.
(music) tempo
5.
tenor
6.
(grammar) tense
7.
ton(s)
8.
transitive
Word Origin
(sense 4) Latin: in the time of

't

contraction
1.
it

tau

/tɔː; taʊ/
noun
1.
the 19th letter in the Greek alphabet (Τ, τ), a consonant, transliterated as t
Word Origin
C13: via Latin from Greek, of Semitic origin; see tav
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for t

T

to cross one's T's (and dot one's i's) "to be exact" is attested from 1849. Phrase to a T "exactly" is recorded from 1690s, though the exact signification is uncertain, despite much speculation. The measuring tool called a T-square is recorded by that name from 1785.

tau

nineteenth letter of the Greek alphabet, from Hebrew taw, last letter of the Hebrew alphabet, literally "sign, mark."

Online Etymology Dictionary, © 2010 Douglas Harper
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t in Medicine

t abbr.
temperature (often italic)

T 1

The symbol for the isotope tritium.

T 2
abbr.

  1. tablespoon

  2. absolute temperature (often italic)

  3. tesla

  4. tetanus toxoids vaccine

  5. tetanus vaccine

tau n.

Symbol τ The 19th letter of the Greek alphabet.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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t in Science
T  
  1. Abbreviation of temperature, tesla, thymine

  2. The symbol for the isotope tritium.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Slang definitions & phrases for t

T 1

noun
  1. Marijuana; tea (1940s+ Narcotics)
  2. A gram of methamphetamine (1960s+ Narcotics)

T 2

noun

A technical foul: The ''T'' was absolutely ridiculous (1990s+ Basketball)


The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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t in Technology

1. True. A Lisp compiler by Johnathan A. Rees in 1982 at Yale University. T has static scope and is a near-superset of Scheme. Unix source is available. T is written in itself and compiles to efficient native code. Used as the basis for the Yale Haskell system. Maintained by David Kranz .
Latest version: 3.1.
(ftp://ftp.ai.mit.edu/pub/systems/t3.1).
A multiprocessing version of T is available (ftp://masala.lcs.mit.edu/pub/mult).
Runs on Decstation, SPARC, Sun-3, Vax under Unix, Encore, HP, Apollo, Macintosh under A/UX.
E-mail: (bugs). E-mail: .
(1991-11-26)
["The T Manual", Johnathan A. Rees et al, Yale U, 1984].
2. A functional language.
["T: A Simple Reduction Language Based on Combinatory Term Rewriting", Ida et al, Proc of Prog Future Generation Computers, 1988].
3. (lower case) The Lisp atom used to represent "true", among other things. "false" is represented using the same atom as an empty list, nil. This overloading of the basic constants of the language helps to make Lisp write-only code.
4. In transaction-processing circles, an abbreviation for "transaction".
5. (Purdue) An alternative spelling of "tee".
The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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Related Abbreviations for t

t

  1. tense (grammar)
  2. [long] ton
  3. top quark

T

  1. AT&T Corporation (stock symbol)
  2. temperature
  3. tenor
  4. tesla
  5. Thailand (international vehicle ID)
  6. thunderstorms
  7. Thursday
  8. thymine
  9. time reversal
  10. [United States] Treasury
  11. tritium
  12. true
  13. T-shirt
  14. Tuesday

t.

  1. tare
  2. teaspoon
  3. teaspoonful
  4. Latin tempore (in the time of)
  5. time
  6. ton
  7. transitive
  8. troy

T.

  1. tablespoon
  2. tablespoonful
  3. township

TAU

Taurus
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Idioms and Phrases with t
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Article for t

tau

elementary subatomic particle similar to the electron but approximately 3,500 times heavier. Like the electron and the muon, the tau is an electrically charged member of the lepton family of subatomic particles; the tau is negatively charged, while its antiparticle is positively charged

Learn more about tau with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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