| Noun | 1. | T - a base found in DNA (but not in RNA) and derived from pyrimidine; pairs with adenine deoxyribonucleic acid, desoxyribonucleic acid, DNA - (biochemistry) a long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix; associated with the transmission of genetic information; "DNA is the king of molecules" pyrimidine - any of several basic compounds derived from pyrimidine |
| 2. | T - one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose) nucleotide, base - a phosphoric ester of a nucleoside; the basic structural unit of nucleic acids (DNA or RNA) | |
| 3. | t - a unit of weight equivalent to 1000 kilogramsmetric weight unit, weight unit - a decimal unit of weight based on the gram quintal - a unit of weight equal to 100 kilograms | |
| 4. | t - the 20th letter of the Roman alphabet Latin alphabet, Roman alphabet - the alphabet evolved by the ancient Romans which serves for writing most of the languages of western Europe alphabetic character, letter of the alphabet, letter - the conventional characters of the alphabet used to represent speech; "his grandmother taught him his letters" | |
| 5. | T - 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 thyroid hormone - any of several closely related compounds that are produced by the thyroid gland and are active metabolically | |
| 6. | T - hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells; "thyroxine is 65% iodine" thyroid hormone - any of several closely related compounds that are produced by the thyroid gland and are active metabolically |