hyperthyroidism

[ hahy-per-thahy-roi-diz-uh m ]

/ ˌhaɪ pərˈθaɪ rɔɪˌdɪz əm /

noun Pathology.

overactivity of the thyroid gland.

a condition resulting from this, characterized by increased metabolism and exophthalmos.

Nearby words

Origin of hyperthyroidism

First recorded in 1895–1900; hyper- + thyroid + -ism

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for hyperthyroidism

The classical symptoms of hyperthyroidism are staring eyes and enlargement of the neck, but these need not be present.
When You Don't Know Where to Turn|Steven J. Bartlett
Hyperthyroidism is eight times more common in women than in men.
When You Don't Know Where to Turn|Steven J. Bartlett

British Dictionary definitions for hyperthyroidism

hyperthyroidism

/ (ˌhaɪpəˈθaɪrɔɪˌdɪzəm) /

noun

overproduction of thyroid hormone by the thyroid gland, causing nervousness, insomnia, sweating, palpitation, and sensitivity to heatAlso called: thyrotoxicosis See exophthalmic goitre

Derived Formshyperthyroid, adjective, noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for hyperthyroidism

hyperthyroidism

1895, from hyper- + thyroid + -ism.

Medicine definitions for hyperthyroidism

hyperthyroidism

[ hī′pər-thī′roi-dĭz′əm ]

n.

Pathologically excessive production of thyroid hormones.

The condition resulting from excessive activity of the thyroid gland, characterized by increased basal metabolism.

Related formshy′per•thy′roid adj.

Science definitions for hyperthyroidism

hyperthyroidism

[ hī′pər-thī′roi-dĭz′əm ]

An abnormality of the thyroid gland characterized by excessive production of thyroid hormone, which can result in an increased basal metabolic rate, causing weight loss, heart palpitations, and tremors. Compare hypothyroidism.