thyroiodin
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.

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  • 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… …   The Collaborative International Dictionary of English

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