noun
- A base found in DNA (but not in RNA) and derived from pyrimidine; pairs with adenine.
- synonyms: thymine
- One of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose.
- synonyms: deoxythymidine monophosphate
- A unit of weight equivalent to 1000 kilograms.
- synonyms: metric ton, MT, tonne
- The 20th letter of the Roman alphabet.
- 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.
- synonyms: triiodothyronine, liothyronine
- Hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells.
- usage: "thyroxine is 65% iodine"
- synonyms: thyroxine, thyroxin, tetraiodothyronine
WordNet 3.0 © 2006 by Princeton University
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