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hypothyroid

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hy⋅po⋅thy⋅roid⋅ism

[hahy-puh-thahy-roi-diz-uhm]
–noun Pathology.
1. deficient activity of the thyroid gland.
2. the condition produced by a deficiency of thyroid secretion, resulting in goiter, myxedema, and, in children, cretinism.

Origin:
1900–05; hypo- + thyroid + -ism


hy⋅po⋅thy⋅roid, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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hy·po·thy·roid   (hī'pō-thī'roid')   
adj.  Affected by or manifesting hypothyroidism.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: hy·po·thy·roid
Pronunciation: "hI-pO-'thI-"roid
Function: adjective
: of, relating to, or affected with hypothyroidism

Main Entry: hy·po·thy·roid·ism
Pronunciation: -"iz-&m
Function: noun
: deficient activity of the thyroid gland; also : a resultant bodily condition characterized by lowered metabolic rate and general loss of vigor
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

hypothyroid hy·po·thy·roid (hī'pō-thī'roid')
adj.
Affected by or manifesting hypothyroidism.

hypothyroidism hy·po·thy·roid·ism (hī'pō-thī'roi-dĭz'əm)
n.

  1. Insufficient production of thyroid hormones.

  2. A pathological condition resulting from thyroid insufficiency, which may lead to cretinism or myxedema.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
hypothyroidism   (hī'pō-thī'roi-dĭz'əm)  Pronunciation Key 
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. Compare hyperthyroidism.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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