hyperthyroidism
hyperthyroidism hyperthyroidism n. (Med.) An abnormality of the thyroid gland characterized by the pathologically excessive production of thyroid hormones; -- also, the resulting condition characterized by increased metabolism, weight loss, rapid heart rate, high blood pressure, an enlarged thyroid gland and sometimes exophthalmos. It leads to, and may be confirmed by, high plasma levels of triiodothyronine or thyroxin.

Syn: thyrotoxicosis. [WordNet 1.5]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Hyperthyroidism — Classification and external resources Triiodothyronine (T3, pictured) and thyroxine (T4) are both forms of thyroid hormone. ICD 10 …   Wikipedia

  • hyperthyroidism — 1895, from HYPER (Cf. hyper ) + THYROID (Cf. thyroid) + ISM (Cf. ism) …   Etymology dictionary

  • hyperthyroidism — [hī΄pərthī′roid iz΄əm] n. 1. excessive activity of the thyroid gland 2. the disorder resulting from this or from taking too much thyroid extract, characterized by loss of weight, nervousness, a rapid pulse, etc …   English World dictionary

  • hyperthyroidism — /huy peuhr thuy roy diz euhm/, n. Pathol. 1. overactivity of the thyroid gland. 2. a condition resulting from this, characterized by increased metabolism and exophthalmos. [1895 1900; HYPER + THYROID + ISM] * * * ▪ pathology also called … …   Universalium

  • hyperthyroidism — noun Etymology: International Scientific Vocabulary Date: circa 1900 excessive functional activity of the thyroid gland; also the resulting condition marked especially by increased metabolic rate, enlargement of the thyroid gland, rapid heart… …   New Collegiate Dictionary

  • hyperthyroidism — (= Graves s disease) Excess production of thyroid hormone caused by autoantibodies that bind to the thyroid stimulating hormone receptor and induce secretion of thyroxine by raising cAMP levels in the thyroid cells …   Dictionary of molecular biology

  • hyperthyroidism — noun a) The excessive production of hormones by the thyroid. b) The pathological condition resulting from these excess hormones …   Wiktionary

  • hyperthyroidism — An abnormality of the thyroid gland in which secretion of thyroid hormone is usually increased and is no longer under regulatory control of hypothalamic pituitary centers; characterized by a hypermetabolic state, usually with weight loss,… …   Medical dictionary

  • hyperthyroidism — n. condition in which the thyroid gland is overactive …   English contemporary dictionary

  • hyperthyroidism — [ˌhʌɪpə θʌɪrɔɪdɪz(ə)m] noun Medicine overactivity of the thyroid gland, resulting in a rapid heartbeat and an increased rate of metabolism. Derivatives hyperthyroid adjective hyperthyroidic adjective …   English new terms dictionary

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