thyrotoxin

thy·ro·tox·in

(thī'rō-tok'sin),
1. A hypothetic substance formerly believed to be an abnormal product of diffusely hyperplastic thyroid glands in people with Graves disease, and presumed to cause the distinctive signs and symptoms of that condition (in contrast to simple hyperthyroidism).
2. A complement-fixing antigenic factor associated with certain diseases of the thyroid gland.
3. Rarely used term referring to any material toxic to thyroidal tissue.

thyrotoxin

[-tok′sin]
a theoretic cytotoxin of the thyroid gland, assumed to be a cause of the signs and symptoms of thyrotoxicosis.

thyrotoxin

(1) A name given to both:
   • A putative toxic substance produced in the diffusely hyperplastic thyroid gland of Graves’ disease; and
   • The various complement-fixing antigens that have been identified as targets in autoimmune thyroiditis. 
(2) A rarely used term for any thyrotoxic substance.
References in periodicals archive ?
The CSG industry is really harmful to unborn babies, to our children, to the people unfortunate enough to be working in it--working with carcinogens, thyrotoxins and other dangerous chemicals that are also ending up in our water.
Much of the blame for GRTH is linked to thyrotoxins.