T

/ti:/
Noun
  1. hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells
    • thyroxine is 65% iodine
  2. 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
  3. the 20th letter of the Roman alphabet
  4. a unit of weight equivalent to 1000 kilograms
  5. one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
  6. a base found in DNA (but not in RNA) and derived from pyrimidine; pairs with adenine

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