1. A hypothetical substance formerly believed to be an abnormal product of diffusely hyperplastic thyroid glands in persons with Graves disease, and presumed to be the cause of 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.

Medical dictionary. 2011.

Look at other dictionaries:

  • thyrotoxin — noun Any thyrotoxic substance …   Wiktionary

  • TRAb — thyrotoxin receptor antibody …   Medical dictionary

  • TRAb — • thyrotoxin receptor antibody …   Dictionary of medical acronyms & abbreviations

  • thyrotoxicosis — noun The medical condition caused by the state of raised levels of thyroid hormone. See Also: thyrotoxic, thyrotoxicity, thyrotoxin …   Wiktionary

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