Definition of Hormone, triiodothyronine Hormone,
triiodothyronine: A hormone made by the thyroid gland. It has
three iodine molecules attached to its molecular structure.
Iodine is naturally found in seafood, bread, seaweed, and
ordinary table salt. Triiodothyronine is the most powerful
thyroid hormone, and affects almost every process in the body,
including body temperature, growth, and heart rate. Also known
as T3, liothyronine.Source: MedTerms™ Medical Dictionary Last
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