| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024thy•rox•ine (thī rok′sēn, -sin),USA pronunciation n. - Biochemistrythe thyroid gland hormone that regulates the metabolic rate of the body.
- Drugs[Pharm.]a commercial form of this compound, obtained from the thyroid glands of animals or synthesized, used in the treatment of hypothyroidism. Symbol.: T4
Also, thy•rox•in (thī rok′sin).USA pronunciation - thyr- + ox- + in(dol)e (origin, originally thought to be a chemical component) 1915–20
Collins Concise English Dictionary © HarperCollins Publishers:: thyroxine /θaɪˈrɒksiːn -sɪn/, thyroxin /θaɪˈrɒksɪn/ n - the principal hormone produced by the thyroid gland: it increases the metabolic rate of tissues and also controls growth, as in amphibian metamorphosis. It can be synthesized or extracted from the thyroid glands of animals and used to treat hypothyroidism. Chemical name: tetra-iodothyronine; formula: C15H11I4NO4
Etymology: 19th Century: from thyro- + oxy-² + -ine² |