Definitions for thyroid
ˈθaɪ rɔɪdthy·roid

Princeton's WordNetRate this definition:0.0 / 0 votes

1. thyroid gland, thyroidadjective

   located near the base of the neck

2. thyroid, thyroidaladjective

   of or relating to the thyroid gland

   "thyroid deficiency"; "thyroidal uptake"

3. thyroidadjective

   suggestive of a thyroid disorder

   "thyroid personality"

WiktionaryRate this definition:0.0 / 0 votes

1. thyroidnoun

   The thyroid gland.

2. thyroidnoun

   The thyroid cartilage.

3. thyroidnoun

   A preparation obtained from the thyroid gland.

WikipediaRate this definition:0.0 / 0 votes

1. Thyroid

   The thyroid, or thyroid gland, is an endocrine gland in vertebrates. In humans it is in the neck and consists of two connected lobes. The lower two thirds of the lobes are connected by a thin band of tissue called the thyroid isthmus. The thyroid is located at the front of the neck, below the Adam's apple. Microscopically, the functional unit of the thyroid gland is the spherical thyroid follicle, lined with follicular cells (thyrocytes), and occasional parafollicular cells that surround a lumen containing colloid. The thyroid gland secretes three hormones: the two thyroid hormones – triiodothyronine (T3) and thyroxine (T4) – and a peptide hormone, calcitonin. The thyroid hormones influence the metabolic rate and protein synthesis, and in children, growth and development. Calcitonin plays a role in calcium homeostasis. Secretion of the two thyroid hormones is regulated by thyroid-stimulating hormone (TSH), which is secreted from the anterior pituitary gland. TSH is regulated by thyrotropin-releasing hormone (TRH), which is produced by the hypothalamus.The thyroid gland develops in the floor of the pharynx at the base of the tongue at 3–4 weeks gestation; it then descends in front of the pharyngeal gut, and ultimately over the next few weeks, it migrates to the base of the neck. During migration, the thyroid remains connected to the tongue by a narrow canal, the thyroglossal duct. At the end of the fifth week the thyroglossal duct degenerates, and over the following two weeks the detached thyroid migrates to its final position. Euthyroid is the term used to describe a state of normal thyroid function in the body. Thyroid disorders include hyperthyroidism, hypothyroidism, thyroid inflammation (thyroiditis), thyroid enlargement (goitre), thyroid nodules, and thyroid cancer. Hyperthyroidism is characterized by excessive secretion of thyroid hormones: the most common cause is the autoimmune disorder Graves' disease. Hypothyroidism is characterized by a deficient secretion of thyroid hormones: the most common cause is iodine deficiency. In iodine-deficient regions, hypothyroidism secondary to iodine deficiency is the leading cause of preventable intellectual disability in children. In iodine-sufficient regions, the most common cause of hypothyroidism is the autoimmune disorder Hashimoto's thyroiditis. The presence of the thyroid and its various diseases have been noted and treated for centuries, although the gland itself has only been described and named since the Renaissance. Knowledge of the thyroid, its biochemistry, and its disorders developed throughout the late nineteenth and twentieth centuries. Many modern treatments and investigative modalities evolved throughout the mid-twentieth century, including refinement of surgical techniques for thyroid removal (thyroidectomy) for the treatment of goitre; the use of radioactive iodine and thiouracil for the treatment of Graves' disease; and fine needle aspiration for diagnosis of thyroid nodules.

ChatGPTRate this definition:0.0 / 0 votes

1. thyroid

   The thyroid is a butterfly-shaped gland situated at the front part of the neck, just below the Adam's apple. It's part of the endocrine system and produces important hormones, such as thyroxine (T4) and triiodothyronine (T3), which regulate the body's metabolic rate, heart and digestive functions, muscle control, brain development, mood, and bone maintenance. An imbalance in the production of these hormones can lead to thyroid disorders such as hypothyroidism, hyperthyroidism, goiter, thyroiditis, thyroid nodules, and thyroid cancer.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Thyroidadjective

   shaped like an oblong shield; shield-shaped; as, the thyroid cartilage

2. Thyroidadjective

   of or pertaining to the thyroid body, thyroid cartilage, or thyroid artery; thyroideal

WikidataRate this definition:0.0 / 0 votes

1. Thyroid

   The thyroid gland or simply, the thyroid, in vertebrate anatomy, is one of the largest endocrine glands. The thyroid gland is found in the neck, below the thyroid cartilage. The isthmus is located inferior to the cricoid cartilage. The thyroid gland controls how quickly the body uses energy, makes proteins, and controls how sensitive the body is to other hormones. It participates in these processes by producing thyroid hormones, the principal ones being triiodothyronine and thyroxine which can sometimes be referred to as tetraiodothyronine. These hormones regulate the rate of metabolism and affect the growth and rate of function of many other systems in the body. T3 and T4 are synthesized from both iodine and tyrosine. The thyroid also produces calcitonin, which plays a role in calcium homeostasis. Hormonal output from the thyroid is regulated by thyroid-stimulating hormone produced by the anterior pituitary, which itself is regulated by thyrotropin-releasing hormone produced by the hypothalamus. The thyroid gets its name from the Greek adjective for "shield-shaped", due to the shape of the related thyroid cartilage. The most common problems of the thyroid gland consist of an overactive thyroid gland, referred to as hyperthyroidism, and an underactive thyroid gland, referred to as hypothyroidism.

Chambers 20th Century DictionaryRate this definition:0.0 / 0 votes

1. Thyroid

   thī′roid, adj. in the form of a shield: denoting a cartilage constituting the anterior, upper part of the larynx, popularly called Adam's apple: denoting a vascular or ductless gland which arises in the earlier human embryo as an ingrowth from the lower part of the pharynx (see Myxœdema). [Gr. thyreos, a shield, eidos, form.]

Editors ContributionRate this definition:0.0 / 0 votes

1. thyroid

   A type of gland.

   Humans have a thyroid gland, it is located in the neck area of the body.

   
   

   Submitted by MaryC on April 13, 2020  

How to pronounce thyroid?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say thyroid in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of thyroid in Chaldean Numerology is: 6

2. Pythagorean Numerology

   The numerical value of thyroid in Pythagorean Numerology is: 9

Examples of thyroid in a Sentence

1. El Moussa:

   I just found out a few weeks ago that with my thyroid cancer I'm officially cancer-free, like I am good.

2. Rachel Frederickson:

   My thyroid, which I never had problems with, is now crap, rachel Frederickson’re brainwashed to believe that Rachel Frederickson’re super-lucky to be there.

3. Kelly Clarkson:

   I literally read this book, and I did it for this autoimmune disease that I had and I had a thyroid issue, and now all my levels are back up. I’m not on medicine anymore because of this book.

4. Sarah Boston:

   If I see a dog with thyroid cancer, they'll come in and usually have surgery within one or two days.

5. Sara Gottfried:

   Grains affect the thyroid, but gluten is especially the problem here because gluten looks a lot like the thyroid and so it can make your body attack the thyroid.

Popularity rank by frequency of use

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=thyroid
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Thyroid
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Thyroid
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/thyroid
6. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=thyroid
7. ^ Chambers 20th Century Dictionary
   https://www.gutenberg.org/files/37683/37683-h/37683-h.htm#:~:text=thyroid