Definition of Hormone, thyroxine

Hormone, thyroxine: A chemical substance made by the thyroid gland The thyroid gland uses iodine to make thyroid hormones. Thyroxine (T4), one of the most important thyroid hormones, has four iodine molecules attached to its molecular structure.


Last Editorial Review: 6/14/2012

Search MedTerms:


Back to MedTerms online medical dictionary A-Z List
Pill Identifier Tool

Need help identifying pills and medications?
Use the pill finder tool on RxList.

STAY INFORMED

Get the Latest health and medical information delivered direct to your inbox!