Disease or Syndrome
thyrotoxicosis Audio
thy·ro·tox·i·co·sis [ thahy-roh-tok-si-koh-sis ]
Subclass of:
Hyperthyroidism
Etymology:
Greek thyreos = a shield + eidos = resemblance + Latin toxicum = a poison (from Greek toxikon pharmakon = poison for arrows) + -osis = condition
Definitions related to thyrotoxicosis:
  • A hypermetabolic syndrome caused by excess THYROID HORMONES which may come from endogenous or exogenous sources. The endogenous source of hormone may be thyroid HYPERPLASIA; THYROID NEOPLASMS; or hormone-producing extrathyroidal tissue. Thyrotoxicosis is characterized by NERVOUSNESS; TACHYCARDIA; FATIGUE; WEIGHT LOSS; heat intolerance; and excessive SWEATING.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • A hypermetabolic syndrome caused by the elevation of thyroid hormone levels in the serum. Signs and symptoms include tachycardia, palpitations, tremor, weight loss, warm weather intolerance, and moist skin. Causes include Graves disease, toxic nodular goiter, toxic thyroid nodule, and lymphocytic thyroiditis.
    NCI
    U.S. National Cancer Institute, 2021
  • A syndrome caused by excessive levels of thyroid hormone due to overproduction or excessive release of stored thyroid hormone.
    NICHD Pediatric Terminology
    U.S. National Cancer Institute, 2021
  • The presence of too much thyroid hormone in the body. This may be caused by an overproductive thyroid, inflammation of the thyroid, or taking too much thyroid hormone.
    Harvard Dictionary of Health Terms
    Harvard Medical Publishing, 2011
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