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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 • Apr. 4, 2024

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

From Salon • Sep. 11, 2023

Hypertension, hypothyroidism and hyperlipidemia were listed as contributing factors in the 99-year-old TV personality’s death.

From Los Angeles Times • Sep. 5, 2023

On the other hand, there is some data linking exposure to high levels of fluoride with an increased risk for hypothyroidism.

From Seattle Times • May 3, 2023

There are, too, individuals in whom hyperthyroidism and hypothyroidism are mixed, or rather alternate.

From The Glands Regulating Personality by Berman, Louis, M.D.