hypothyroidism

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

noun Pathology.

deficient activity of the thyroid gland.
the condition produced by a deficiency of thyroid secretion, resulting in goiter, myxedema, and, in children, cretinism.

Origin of hypothyroidism

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

Related formshy·po·thy·roid, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for hypothyroid

Contemporary Examples of hypothyroid

Guidelines were developed: hypothyroid was anyone with TSH higher than 5.
Treat the Symptom, Not the Measurement
Megan McArdle
November 1, 2012

Historical Examples of hypothyroid

This is corroborated by a low thyroxine level of 0.6 micrograms percent, which is hypothyroid for wolves.
An Experimental Translocation of the Eastern Timber Wolf
Thomas F. Weise

British Dictionary definitions for hypothyroid

hypothyroidism

noun pathol

insufficient production of thyroid hormones by the thyroid gland
any disorder, such as cretinism or myxoedema, resulting from this

Derived Formshypothyroid, noun, adjective

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

hypothyroid in Medicine

hypothyroidism

[hī′pō-thī′roi-dĭz′əm]

Insufficient production of thyroid hormones.
A pathological condition resulting from thyroid insufficiency, which may lead to cretinism or myxedema.

Related formshy′po•thy′roid adj.

hypothyroid in Science

hypothyroidism

[hī′pō-thī′roi-dĭz′əm]

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.