1. [ noun ] a unit of weight equivalent to 1000 kilograms
Synonyms: MT tonne metric_ton
Related terms: metric_weight_unit quintal
2. [ noun ] (biology,anatomy,biochemistry) 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
Related terms: thyroid_hormone
3. [ noun ] the 20th letter of the Roman alphabet
Related terms: letter Roman_alphabet
4. [ noun ] (biology,chemistry,biochemistry) a base found in DNA (but not in RNA) and derived from pyrimidine; pairs with adenine
Synonyms: thymine
Related terms: base pyrimidine deoxyribonucleic_acid
5. [ noun ] (biology,anatomy,biochemistry) hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells
Synonyms: thyroxine thyroid_hormone tetraiodothyronine thyroxin

"thyroxine is 65% iodine"

Related terms: hormone thyroid_hormone
6. [ noun ] (chemistry) one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
Synonyms: deoxythymidine_monophosphate
Related terms: nucleotide
7. [ noun ] (computer science) a unit of information equal to a trillion (1,099,511,627,776) bytes or 1024 gigabytes
Synonyms: Terabyte Tb TB terabyte
Related terms: computer_memory_unit gigabyte
Similar spelling:   Ta