T
       n 1: a base found in DNA (but not in RNA) and derived from
            pyrimidine; pairs with adenine [syn: thymine]
       2: one of the four nucleotides used in building DNA; all four
          nucleotides have a common phosphate group and a sugar
          (ribose) [syn: deoxythymidine monophosphate]
       3: a unit of weight equivalent to 1000 kilograms [syn: metric
          ton, MT, tonne]
       4: a unit of information equal to a trillion
          (1,099,511,627,776) bytes or 1024 gigabytes [syn: terabyte,
           TB]
       5: the 20th letter of the Roman alphabet
       6: 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 [syn: triiodothyronine, liothyronine]
       7: hormone produced by the thyroid glands to regulate
          metabolism by controlling the rate of oxidation in cells;
          "thyroxine is 65% iodine" [syn: thyroxine, thyroxin, tetraiodothyronine]