Princeton's WordNet

1. thymine, T(noun)

   a base found in DNA (but not in RNA) and derived from pyrimidine; pairs with adenine

2. deoxythymidine monophosphate, T(noun)

   one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)

3. metric ton, MT, tonne, t(noun)

   a unit of weight equivalent to 1000 kilograms

4. T, t(noun)

   the 20th letter of the Roman alphabet

5. triiodothyronine, liothyronine, T(noun)

   thyroid hormone similar to thyroxine but with one less iodine atom per molecule and produced in smaller quantity; exerts the same biological effects as thyroxine but is more potent and briefer

6. thyroxine, thyroxin, tetraiodothyronine, T(noun)

   hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells

   "thyroxine is 65% iodine"

Wiktionary

1. t(Pronoun)

   Contraction of it.

Webster Dictionary

1. T(u)

   the twentieth letter of the English alphabet, is a nonvocal consonant. With the letter h it forms the digraph th, which has two distinct sounds, as in thin, then. See Guide to Pronunciation, //262-264, and also //153, 156, 169, 172, 176, 178-180

The New Hacker's Dictionary

1. T

   1. [from LISP terminology for ‘true’] Yes. Used in reply to a question (particularly one asked using The -P convention). In LISP, the constant T means ‘true’, among other things. Some Lisp hackers use ‘T’ and ‘NIL’ instead of ‘Yes’ and ‘No’ almost reflexively. This sometimes causes misunderstandings. When a waiter or flight attendant asks whether a hacker wants coffee, he may absently respond ‘T’, meaning that he wants coffee; but of course he will be brought a cup of tea instead. Fortunately, most hackers (particularly those who frequent Chinese restaurants) like tea at least as well as coffee — so it is not that big a problem. 2. See time T (also since time T equals minus infinity). 3. [techspeak] In transaction-processing circles, an abbreviation for the noun ‘transaction’. 4. [Purdue] Alternate spelling of tee. 5. A dialect of LISP developed at Yale. (There is an intended allusion to NIL, “New Implementation of Lisp”, another dialect of Lisp developed for the VAX)

The Standard Electrical Dictionary

1. T

   Symbol of time.

• T-hempAfrikaans
• قَميص ذو كُمَّيْنArabic
• тенискаBulgarian
• camisetaPortuguese (BR)
• tričkoCzech
• das T-ShirtGerman
• t-shirtDanish
• μακό μπλουζάκιGreek
• camisetaSpanish
• T-särkEstonian
• تی شرتFarsi
• T-paitaFinnish
• tee-shirtFrench
• חוּלצַת-טִיHebrew
• टीशर्टHindi
• majica s kratkim rukavimaCroatian
• kaus oblongIndonesian
• stuttermabolurIcelandic
• T-shirtItalian
• ＴシャツJapanese
• T셔츠Korean
• marškinėliaiLithuanian
• teniskreklsLatvian
• baju TMalay
• T shirtDutch
• t-skjorteNorwegian
• koszulkaPolish
• تی شرتPersian
• تی شرتPashto
• camisetaPortuguese
• tee-shirt, tricouRomanian
• футболкаRussian
• tričkoSlovak
• majica s kratkimi rokaviSlovenian
• T majicaSerbian
• t-shirtSwedish
• เสื้อยืดคอกลม แขนสั้นและไม่มีปกThai
• tişörtTurkish
• 短袖男汗衫Chinese (Trad.)
• теніскаUkrainian
• ٹي شرٹ، چھوٹي آستين کا ہلکا سوتي شرٹUrdu
• áo sơ miVietnamese
• 短袖男汗衫Chinese (Simp.)