- Iodothyrin
- Iodothyrin I`o*do*thy"rin, n. [Iodo- + thyro- + -in.]
(Physiol. Chem.)
A peculiar substance obtained from the thyroid gland,
containing from nine to ten per cent of iodine.
Note: It is a very stable compound, and is believed to be active principle in thyroid extracts and in the internal secretion of the thyroid gland. It was originally called {thyroiodin}. [Webster 1913 Suppl.]
Note: It is probably an impure extract of thyroid gland, containing thyroxine. See Merck Index 11th Ed. #9345, the entry for thyroidin. [PJC]
The Collaborative International Dictionary of English. 2000.