<b><font size="4">"t"</font></b><br/><b>noun</b> <ol> <li>a base found in DNA (but not in RNA) and derived from pyrimidine; pairs with adenine [syn: <a href="../thymine.html">thymine</a>] </li> <li>one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose) [syn: <a href="/">deoxythymidine monophosphate</a>] </li> <li>a unit of weight equivalent to 1000 kilograms [syn: <a href="/">metric ton</a>, <a href="../MT.html">MT</a>, <a href="../tonne.html">tonne</a>] </li> <li>a unit of information equal to a trillion (1,099,511,627,776) bytes or 1024 gigabytes [syn: <a href="../terabyte.html">terabyte</a>, <a href="../TB.html">TB</a>] </li> <li>the 20th letter of the Roman alphabet </li> <li>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: <a href="../triiodothyronine.html">triiodothyronine</a>, <a href="../liothyronine.html">liothyronine</a>] </li> <li>hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells; "thyroxine is 65% iodine" [syn: <a href="../thyroxine.html">thyroxine</a>, <a href="../thyroxin.html">thyroxin</a>, <a href="../tetraiodothyronine.html">tetraiodothyronine</a>]</li> </ol> Source: <a href="../t.html">http://www.word.sc/t</a>

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