Noun
hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells; "thyroxine is 65% iodine"

Noun
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

Noun
the 20th letter of the Roman alphabet

Noun
a unit of information equal to a trillion (1,099,511,627,776) bytes or 1024 gigabytes

Noun
a unit of weight equivalent to 1000 kilograms

Noun
one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)

Noun
a base found in DNA (but not in RNA) and derived from pyrimidine; pairs with adenine

t

A kitten.