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hypothyroidism

American  
[hahy-puh-thahy-roi-diz-uhm] / ˌhaɪ pəˈθaɪ rɔɪˌdɪz əm /

noun

Pathology.
  1. deficient activity of the thyroid gland.

  2. the condition produced by a deficiency of thyroid secretion, resulting in goiter, myxedema, and, when untreated in children, intellectual disability.


hypothyroidism British  
/ ˌhaɪpəʊˈθaɪrɔɪˌdɪzəm /

noun

  1. insufficient production of thyroid hormones by the thyroid gland

  2. any disorder, such as cretinism or myxoedema, resulting from this

"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

hypothyroidism Scientific  
/ hī′pō-thīroi-dĭz′əm /
  1. An abnormality of the thyroid gland characterized by insufficient production of thyroid hormone, which can result in a decreased basal metabolic rate, causing weight gain and fatigue.

  2. Compare hyperthyroidism


Other Word Forms

  • hypothyroid adjective

Etymology

Origin of hypothyroidism

First recorded in 1900–05; hypo- + thyroid + -ism

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

For instance, a mass spectrometer can measure hormone levels in the blood of someone with hypothyroidism.

From Science Daily

You may want to consult our “eGuide to Thyroid Hormones” for more information on testing for hypothyroidism, as well as drugs and supplements that can affect test results and natural hormones.

From Seattle Times

After I started drinking a couple of glasses of soy milk every day, I noticed symptoms of hypothyroidism.

From Seattle Times

Perusquia had been the first doctor to explain her hypothyroidism and why she needed to take a thyroid medication to regulate the condition.

From Los Angeles Times

Feeling unusually cold, along with others symptoms like fatigue, can accompany hypothyroidism.

From Salon