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Noun: hyperthyroidism  ,hI-pu(r)'thI-roy,di-zum
  1. An overactive thyroid gland; pathologically excessive production of thyroid hormones or the condition resulting from it
    "Symptoms of hyperthyroidism include weight loss and rapid heartbeat";
    - thyrotoxicosis

Derived forms: hyperthyroidisms

Type of: adenosis, gland disease, glandular disease, glandular disorder

Antonym: hypothyroidism

Encyclopedia: Hyperthyroidism