T

noun

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

   noun.substance

   Synonyms thymine

   Source: WordNet 3.0

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

   noun.substance

   Synonyms a c deoxyadenosine monophosphate deoxycytidine monophosphate deoxyguanosine monophosphate deoxythymidine monophosphate g

   Source: WordNet 3.0

3. a unit of weight equivalent to 1000 kilograms

   noun.quantity

   Synonyms metric ton mt tonne

   Source: WordNet 3.0

4. the 20th letter of the Roman alphabet

   noun.communication

   Source: WordNet 3.0

5. 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

   noun.body

   Synonyms liothyronine triiodothyronine

   Source: WordNet 3.0

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

   noun.body

   Examples

   Thyroxine is 65% iodine.

   Synonyms tetraiodothyronine thyroxin thyroxine

   Source: WordNet 3.0