thyroxine

Definition / meaning of thyroxine

A hormone that is made by the thyroid gland and contains iodine. Thyroxine increases the rate of chemical reactions in cells and helps control growth and development. Thyroxine can also be made in the laboratory and is used to treat thyroid disorders. Also called L-3,5,5

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Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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