释义 |
tri·iodothyronine \“+\ noun Etymology: tri- + iod- + thyronine : a crystalline iodine-containing phenolic amino acid C15H12I3NO4 that occurs in the levorotatory l-form in small amounts with thyroxine but is usually made synthetically, is believed to be formed from thyroxine by loss of one iodine atom per molecule, has a more rapid and potent but briefer physiological action than thyroxine, and is used especially in the form of its soluble sodium salt in the treatment of hypothyroidism and metabolic insufficiency |