Iodothyrin
Pronunciation : I`o*do*thy"rin
Part of Speech : n.
Definition : Defn: A peculiar substance obtained from the thyroid gland, containing from nine to ten per cent of iodine.
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.
[Iodo- + thyro- + -in.] (Physiol. Chem.)
Source : Webster's Unabridged Dictionary, 1913