thyroid

noun
thy·​roid | \ ˈthī-ˌrȯid How to pronounce thyroid (audio) \

Definition of thyroid

 (Entry 1 of 2)

1 : a large bilobed endocrine gland of vertebrates lying at the anterior base of the neck and producing especially the hormones thyroxine and triiodothyronine
2 : a preparation of the thyroid gland of various domestic animals used in treating thyroid disorders

thyroid

adjective
thy·​roid | \ ˈthī-ˌrȯid How to pronounce thyroid (audio) \
variants: or less commonly thyroidal \ thī-​ˈrȯi-​dᵊl How to pronounce thyroidal (audio) \

Definition of thyroid (Entry 2 of 2)

1a : of, relating to, or being the thyroid gland
b : suggestive of a disordered thyroid a thyroid personality
2 : of, relating to, or being the chief cartilage of the larynx

Examples of thyroid in a Sentence

Recent Examples on the Web: Noun

The Adam's apple is outwardly protruding thyroid cartilage surrounding the larynx. Morgan Hines, USA TODAY, "What can a tiny bone tell us about Jeffrey Epstein's death?," 10 Aug. 2019 True Health testing covers more than 300 biomarkers, from thyroid hormones to diabetes risk factors. Orla Mccaffrey, Dallas News, "Frisco diagnostic firm lays off workers, files for bankruptcy after feds yank payments," 31 July 2019 Abby Is Rushed To the Hospital With Neck Pain In April 2018, Miller was rushed to the hospital because of an unknown thyroid condition. Sophia Caraballo, Woman's Day, "All the Details Of 'Dance Moms' Abby Lee Miller’s Medical Past," 28 July 2019 Revenue also is growing from partnerships with other companies to jointly sell Lynparza for ovarian cancer and Lenvima for liver, kidney and thyroid cancer. Washington Post, "Merck’s global sales jump 12% in second quarter," 30 July 2019 Array’s drug targets a mutation called BRAF, which can show up in some forms of melanoma, colorectal, and thyroid cancers, among others. Drew Armstrong, BostonGlobe.com, "Pfizer expands in cancer with $10.6 billion deal for Array," 17 June 2019 In December, Susan Binford was diagnosed with thyroid cancer. Matthew Vantryon, Indianapolis Star, "Jake Stout was a 'flashy' starter. Then he rode the bench. Now, he can help HSE win state.," 15 June 2019 The mother of two had been in line to work toward a clinical psychology doctorate near Walter Reed National Military Medical Center, but the Navy decided not to send her to the program because of her history with thyroid cancer. Fox News, "Lawmaker wants US Navy ship to be named after female service member killed in Syria," 15 June 2019 She was then diagnosed with thyroid cancer in 2010 and underwent radioactive treatment. George Ramsay, CNN, "Gabriele Grunewald: Professional runner inspired 'hope' in cancer fight," 12 June 2019

Recent Examples on the Web: Adjective

Examples included antibiotics, anti-inflammatory (ibuprofen), anti-depressants, anti-diabetics, stimulants (caffeine), and reproductive and thyroid hormones. David Taylor, Houston Chronicle, "Cleveland PD offering safe place to dispose of drugs," 13 Sep. 2019 The thyroid produces thyroid hormone (TH), which regulates your body's metabolism, heartbeat, temperature, mood, and other important processes—reaching out to nearly every single cell in your body. Maggie O'neill, Health.com, "The Growths on This Child’s Tongue Led to an Extremely Rare Medullary Thyroid Cancer Diagnosis," 17 July 2019 So, what is thyroid cancer—specifically, medullary thyroid cancer? Maggie O'neill, Health.com, "The Growths on This Child’s Tongue Led to an Extremely Rare Medullary Thyroid Cancer Diagnosis," 17 July 2019 Soy foods don’t affect thyroid function in people with healthy thyroids, found a Loma Linda University review of 14 studies. Marygrace Taylor, Good Housekeeping, "Is Soy Good or Bad for You? Here's the Science-Backed Answer," 18 July 2018 Soy foods don’t affect thyroid function in people with healthy thyroids, found a Loma Linda University review of 14 studies. Marygrace Taylor, Good Housekeeping, "Is Soy Good or Bad for You? Here's the Science-Backed Answer," 18 July 2018 Soy foods don’t affect thyroid function in people with healthy thyroids, found a Loma Linda University review of 14 studies. Marygrace Taylor, Good Housekeeping, "Is Soy Good or Bad for You? Here's the Science-Backed Answer," 18 July 2018 Soy foods don’t affect thyroid function in people with healthy thyroids, found a Loma Linda University review of 14 studies. Marygrace Taylor, Good Housekeeping, "Is Soy Good or Bad for You? Here's the Science-Backed Answer," 18 July 2018 Possible causes include thyroid surgery to fully or partially remove the gland for some reason, like cancer. Carolyn L. Todd, SELF, "Are Hashimoto’s Disease and Hypothyroidism the Same Thing?," 14 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'thyroid.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of thyroid

Noun

1787, in the meaning defined at sense 1

Adjective

circa 1741, in the meaning defined at sense 1a

History and Etymology for thyroid

Adjective

New Latin thyroides, from Greek thyreoeidēs shield-shaped, thyroid, from thyreos shield shaped like a door, from thyra door — more at door

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Statistics for thyroid

Last Updated

3 Oct 2019

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Time Traveler for thyroid

The first known use of thyroid was circa 1741

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More Definitions for thyroid

thyroid

noun

English Language Learners Definition of thyroid

medical : a small gland in the neck that affects growth

thyroid

noun
thy·​roid | \ ˈthī-ˌrȯid How to pronounce thyroid (audio) \

Kids Definition of thyroid

: a gland at the base of the neck that produces hormones which affect growth, development, and the rate at which the body uses energy

thyroid

adjective
thy·​roid | \ ˈthī-ˌrȯid How to pronounce thyroid (audio) \
variants: also thyroidal \ thī-​ˈrȯid-​ᵊl How to pronounce thyroidal (audio) \

Medical Definition of thyroid

 (Entry 1 of 2)

1a : of, relating to, affecting, or being the thyroid gland thyroid disorders
2 : of, relating to, or being the thyroid cartilage

thyroid

noun

Medical Definition of thyroid (Entry 2 of 2)

1 : a large bilobed endocrine gland of craniate vertebrates that arises as a median ventral outgrowth of the pharynx, lies in the anterior base of the neck or anterior ventral part of the thorax, is often accompanied by lateral accessory glands sometimes more or less fused with the main mass, and produces especially the hormones thyroxine and triiodothyronine

called also thyroid gland

2 : a preparation of the thyroid gland of various domesticated food animals (as pigs) containing approximately ¹/₁₀ percent of iodine combined in thyroxine and used in treating thyroid disorders

called also thyroid extract

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More from Merriam-Webster on thyroid

Rhyming Dictionary: Words that rhyme with thyroid

Spanish Central: Translation of thyroid

Nglish: Translation of thyroid for Spanish Speakers

Britannica.com: Encyclopedia article about thyroid

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