T, t

[tee]

noun, plural T's or Ts, t's or ts.

the 20th letter of the English alphabet, a consonant.
any spoken sound represented by the letter T or t, as in tub, but, or butter.
something having the shape of a T.
a written or printed representation of the letter T or t.
a device, as a printer's type, for reproducing the letter T or t.

Idioms

    to a T, exactly; perfectly: That job would suit you to a T.Also to a tee.

t

Statistics.

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

T

[tee]

noun (sometimes lowercase)

T

Electricity. tesla; teslas.
Physics. temperature.

T

Symbol.

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

't

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

t-

Chemistry. tertiary.

T2

T1

T-

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

t.

1

in the time of.

Origin of t.

1
From the Latin word tempore

t.

2

T.

tablespoon; tablespoonful.

-t

variant of -ed1 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.

tau

[tou, taw for 1, 2, 4; tahv, tawv for 3]

noun

the 19th letter of the Greek alphabet (T, τ).
the consonant sound represented by this letter.
Also tau·on [tou-on] /ˈtaʊ ɒn/. Physics. tau lepton.
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 of tau

1250–1300; Middle English < Latin < Greek taû < Semitic; cf. tav
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


Examples from the Web for t

Contemporary Examples of t

Historical Examples of t

  • For one thing Fred sha'n't get into that kind of muss if I can save him from it.

    The Spenders

    Harry Leon Wilson

  • It wa'n't good for him to be holed up out there in them hills all his life.

    The Spenders

    Harry Leon Wilson

  • One time he landed in Pocatello when there wa'n't but one game in town.

    The Spenders

    Harry Leon Wilson

  • And six weeks after that I had things in shape so't I was able to leave.

    The Spenders

    Harry Leon Wilson

  • She wa'n't meant fur it—and I'd rather have her marry an American, anyhow.

    The Spenders

    Harry Leon Wilson


British Dictionary definitions for t

t

T

noun plural t's, T's or Ts

the 20th letter and 16th consonant of the modern English alphabet
a speech sound represented by this letter, usually a voiceless alveolar stop, as in tame
  1. something shaped like a T
  2. (in combination)a T-junction
to a T in every detail; perfectlythe work suited her to a T

t

symbol for

tonne(s)
troy (weight)
statistics distribution
statistics See Student's t

T

symbol for

absolute temperature
tera-
chem tritium
biochem thymine
tesla
surface tension

abbreviation for

Thailand (international car registration)

T-

abbreviation for

trainer (aircraft)T-37

t.

abbreviation for

commerce tare
teaspoon(ful)
temperature
music tempo
tenor
grammar tense
ton(s)
transitive

Word Origin for t.

(sense 4) Latin: in the time of

't

contraction of

it

tau

noun

the 19th letter in the Greek alphabet (Τ, τ), a consonant, transliterated as t

Word Origin for tau

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

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

t in Medicine

t

abbr.

temperature

tau

n.

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.

t in Science

T

Abbreviation of temperature, tesla, thymine
The symbol for the isotope tritium.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Idioms and Phrases with t

T

see dot the i's and cross the t's; to a T.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.