a base found in DNA (but not in RNA) and derived from pyrimidine; pairs with adenine
one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
a unit of information equal to a trillion (1,099,511,627,776) bytes or 1024 gigabytes
See Guide to Pronunciation, §§262-264, and also §§153, 156, 169, 172, 176, 178-180
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
hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells; "thyroxine is 65% iodine"
With the letter h it forms the digraph th, which has two distinct sounds, as in thin, then