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Longman Dictionary of Contemporary English
thyroid
noun
EXAMPLES FROM CORPUS
▪ Other solid tumors associated with hypercalcemia arise from lung, kidney, liver, cervix, prostate, and thyroid.
▪ There may be other causes as well, like a thyroid or blood-sugar problem.
▪ Will they go away once my thyroid is treated?
The Collaborative International Dictionary
Thyroid

Thyroid \Thy"roid\, a. [Gr. qyreoeidh`s shield-shaped; qyreo`s a large, oblong shield (from qy`ra a door) + e'i^dos form: cf. F. thyro["i]de, thyr['e]o["i]de.]

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

  2. (Anat.) Of or pertaining to the thyroid body, thyroid cartilage, or thyroid artery; thyroideal.

    Thyroid cartilage. See under Larynx.

    Thyroid body, or Thyroid gland (Anat.), an endocrine gland having two lobes, located in the floor of the mouth or the region of the larynx, which secretes two hormones ( thyroxine and triiodothyronine) that regulate the rates of growth and metabloism. In man and most mammals it is a highly vascular organ, partly surrounding the base of the larynx and the upper part of the trachea. Cases of hypothyroidism, where the gland is insufficiently active, can be treated by administration of thyroxine or a combination of thyroxine and triiodothyronine.

    Thyroid dislocation (Surg.), dislocation of the thigh bone into the thyroid foramen.

    Thyroid foramen, the obturator foramen.

Douglas Harper's Etymology Dictionary
thyroid

1690s (in reference to both the cartilage and the gland), from Greek thyreoiedes "shield-shaped" (in khondros thyreoiedes "shield-shaped cartilage," used by Galen to describe the "Adam's apple" in the throat), from thyreos "oblong, door-shaped shield" (from thyra "door," from PIE *dhwer-; see door) + -eides "form, shape" (see -oid). The noun, short for thyroid gland, is recorded from 1849.

Wiktionary
thyroid

a. Referring to the gland situated in the neck and its blood vessels, etc. n. (context anatomy English) The thyroid gland.

WordNet
thyroid
  1. adj. of or relating to the thyroid gland; "thyroid deficiency"; "thyroidal uptake" [syn: thyroidal]

  2. suggestive of a thyroid disorder; "thyroid personality"

thyroid

n. located near the base of the neck [syn: thyroid gland]

Wikipedia
Thyroid

The thyroid gland, or simply the thyroid , is one of the largest endocrine glands in the body, and consists of two connected lobes. It is found in the anterior neck, below the laryngeal prominence (Adam's apple). The thyroid gland controls rate of use of energy sources, protein synthesis, and controls the body's sensitivity to other hormones.These hormones regulate the growth and rate of function of many other systems in the body. T and T are synthesized from 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 (TSH) produced by the anterior pituitary, which itself is regulated by thyrotropin-releasing hormone (TRH) produced by the hypothalamus.

The thyroid may be affected by some frequent thyroid diseases. Hyperthyroidism occurs when the gland produces excessive amounts of thyroid hormones, the most common cause being Graves' disease—an autoimmune disorder. In contrast, hypothyroidism is a state of insufficient thyroid hormone production. Worldwide, the most common cause is iodine deficiency. Thyroid hormones are important for development, and hypothyroidism secondary to iodine deficiency remains the leading cause of preventable intellectual disability. In iodine-sufficient regions, the most common cause of hypothyroidism is Hashimoto's thyroiditis—also an autoimmune disease. In addition, the thyroid gland may also develop several types of nodules and cancer.

Thyroid (journal)

Thyroid is a medical journal in the field of endocrinology, covering research on diseases of the thyroid. It is the official journal of the American Thyroid Association and published by Mary Ann Liebert, Inc..

Category:Publications established in 1990 Category:Endocrinology journals Category:Mary Ann Liebert academic journals Category:English-language journals Category:Monthly journals

Usage examples of "thyroid".

The secretion of TSH can, as a result, be abnormally high and the thyroid kept needlessly, and even harmfully, overactive.

High blood pressure magnifies the aging and symptoms associated with diabetes, causes kidney failure and many other hormone-related conditions, and be triggered by thyroid, adrenal, or kidney problems.

The largest represents the thyroid cartilage, the next in size the cricoid, and the two smallest the arytenoid cartilages.

That this connection of the goiter and at least one set of symptoms was no coincidence was clearly demonstrated in 1883, when several Swiss surgeons completely removed goitrous thyroids from 46 patients.

In high amounts, isoflavones may have potential negative effects on other hormones, especially in terms of thyroid function.

Some preliminary studies suggest that excess isoflavones can adversely affect the binding of thyroid hormones, which can lead to an underactive thyroid function.

For some thirty-five years after the discovery of thyroxine, it was considered the thyroid hormone.

The hyoid bone was splintered and the thyroid and tracheal cartilage crushed.

The level of tracheal penetration, just below the thyroid cartilage, suggests to me that the neck was extended first, before the slash was made.

I massaged the isthmus of the thyroid, pushing it out of the way, hard toward his head, and with my other hand, pressed the knife blade down into the fourth tracheal cartilage.

His hand also pulped the thyroid cartilage and crushed the laryngeal branch of the vital vagus nerve.

The characteristics of this form of idiocy are an enlarged thyroid gland constituting a goitre or bronchocele, a high-arched palate, dwarfed stature, squinting eyes, sallow complexion, small legs, conical head, large mouth, and indistinct speech.

A: Hypothyroidism is present in more than 10 percent of people over the age of sixty, which is one reason why we urge you to get a thyroid test every five years starting at sixty.

Untreated chronic disorders such as anemia, chronic fatigue syndrome, untreated thyroid conditions, seasonal affective disorder, menopausal or perimenopausal symptoms, or immune-deficiency problems can make a person too exhausted to conjure up a creative new life.

The ball entered the right shoulder, immediately over the suprascapular notch, passed superficially upward and forward into the neck, wounding the esophagus posteriorly at a point opposite the thyroid cartilage, and lodged in the left side of the neck.