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![](https://webarchive.library.unt.edu/eot2008/20090115183356im_/http://www.cancer.gov/images/spacer.gif)
(...TEH-truh-i-oh-doh-THY-roh-neen)
![](https://webarchive.library.unt.edu/eot2008/20090115183356im_/http://www.cancer.gov/images/spacer.gif)
| A hormone that is made by the thyroid gland and contains iodine. L-3,5,5’-tetraiodothyronine increases the rate of chemical reactions in cells and helps control growth and development. L-3,5,5’-tetraiodothyronine can also be made in the laboratory and is used to treat thyroid disorders. Also called T4, thyroxin, and thyroxine. |
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![](https://webarchive.library.unt.edu/eot2008/20090115183356im_/http://www.cancer.gov/images/spacer.gif)
Previous Definitions: | Krukenberg tumor, KSHV, KW2189, KX2-391, Kytril | Next Definitions: | L-377,202, L-778,123, L-arginine, L-asparaginase, L-carnitine |
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