T3 or T3abbr. triiodothyronineT4 or T4abbr. thyroxineT 1 The symbol for the isotope tritium.T 2abbr.1. also T.a. tablespoonb. tablespoonful2. Football tackle3. temperature4. tenor5. tesla6. Thursday7. thymine8. time reversal9. township10. Tuesday11. Sports turnovert 1 or T (t?)n. pl. t’s or T’s also ts or Ts 1. The 20th letter of the modern English alphabet.2. Any of the speech sounds represented by the letter t.3. The 20th in a series.4. Something shaped like the letter T.Idiom: to a T Perfectly; precisely: This actor fits the role to a T.t 2abbr.1. a. teaspoonb. teaspoonful2. top quarkAmerican Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.t (ti?) or Tn, pl t’s, T’s or Ts1. (Linguistics) the 20th letter and 16th consonant of the modern English alphabet2. (Phonetics & Phonology) a speech sound represented by this letter, usually a voiceless alveolar stop, as in tame3. a. something shaped like a Tb. (in combination): a T-junction. 4. to a T in every detail; perfectly: the work suited her to a T. t symbol for 1. (Units) tonne(s) 2. (Units) troy (weight) 3. (Statistics) statistics distribution 4. (Statistics) statistics See Student’s t T symbol for 1. (General Physics) absolute temperature 2. (Mathematics) tera- 3. (Chemistry) chem tritium 4. (Biochemistry) biochem thymine 5. (Units) tesla 6. (General Physics) surface tension abbreviation for (Government, Politics & Diplomacy) Thailand (international car registration) Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014T, t (ti) n., pl. Ts T’s, ts t’s. 1. the 20th letter of the English alphabet, a consonant. 2. any spoken sound represented by this letter. 3. something shaped like a T. 4. a written or printed representation of the letter T or t. Idioms: to a T or tee, exactly; perfectly. T 1. temperature. 2. tera-. 3. tesla. T Symbol. 1. the 20th in order or in a series. 2. surface tension. 3. a. threonine. b. thymine. 4. 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. -t var. of -ed1 and -ed2: slept; felt; dreamt. T. 1. tablespoon. 2. Territory. 3. Township. 4. Tuesday. t. 1. Football. tackle. 2. taken from. 3. tare. 4. teaspoon; teaspoonful. 5. temperature. 6. in the time of. [