thyroiodin

1 definition found

thyroiodin - Collaborative International Dictionary of English v.0.48 :

  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]