thyroid hormone
any of several closely related compounds that are produced by the thyroid gland and are active metabolically (Freq. 4) • Hypernyms: hormone, endocrine, internal secretion • Hyponyms: calcitonin, thyrocalcitonin, thyroxine, thyroxin, tetraiodothyronine, T, triiodothyronine, liothyronine
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