a base found in DNA (but not in RNA) and derived from pyrimidine; pairs with adenine
source: WordNet 3.0
one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
source: WordNet 3.0
a unit of weight equivalent to 1000 kilograms
source: WordNet 3.0
the 20th letter of the Roman alphabet
source: WordNet 3.0
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
source: WordNet 3.0
hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells
