Definitions for triiodothyronine
ˌtraɪ aɪˌoʊ doʊˈθaɪ rəˌnin, -aɪˌɒd oʊ-tri·iodothy·ro·nine

Princeton's WordNetRate this definition:0.0 / 0 votes

1. triiodothyronine, liothyronine, Tnoun

   thyroid hormone similar to thyroxine but with one less iodine atom per molecule and produced in smaller quantity; exerts the same biological effects as thyroxine but is more potent and briefer

WiktionaryRate this definition:5.0 / 1 vote

1. triiodothyroninenoun

   The most powerful thyroid hormone, affecting almost every process in the body, including body temperature, growth, and heart rate.

WikipediaRate this definition:0.0 / 0 votes

1. Triiodothyronine

   Triiodothyronine, also known as T3, is a thyroid hormone. It affects almost every physiological process in the body, including growth and development, metabolism, body temperature, and heart rate.Production of T3 and its prohormone thyroxine (T4) is activated by thyroid-stimulating hormone (TSH), which is released from the anterior pituitary gland. This pathway is part of a closed-loop feedback process: Elevated concentrations of T3, and T4 in the blood plasma inhibit the production of TSH in the anterior pituitary gland. As concentrations of these hormones decrease, the anterior pituitary gland increases production of TSH, and by these processes, a feedback control system stabilizes the level of thyroid hormones in the bloodstream. T3 is the true hormone. Its effects on target tissues are roughly four times more potent than those of T4. Of the thyroid hormone that is produced, just about 20% is T3, whereas 80% is produced as T4. Roughly 85% of the circulating T3 is later formed in the liver and anterior pituitary by removal of the iodine atom from the carbon atom number five of the outer ring of T4. In any case, the concentration of T3 in the human blood plasma is about one-fortieth that of T4. The half-life of T3 is about 2.5 days. The half-life of T4 is about 6.5 days.

ChatGPTRate this definition:0.0 / 0 votes

1. triiodothyronine

   Triiodothyronine, also known as T3, is a thyroid hormone that plays significant roles in the body's metabolic processes. This hormone affects nearly every physiological process in the body, including growth and development, metabolism, body temperature, and heart rate. Its production is primarily regulated by thyroid-stimulating hormone (TSH) released from the pituitary gland.

WikidataRate this definition:0.0 / 0 votes

1. Triiodothyronine

   Triiodothyronine, also known as T3, is a thyroid hormone. It affects almost every physiological process in the body, including growth and development, metabolism, body temperature, and heart rate. Production of T3 and its prohormone thyroxine is activated by thyroid-stimulating hormone, which is released from the pituitary gland. This pathway is regulated via a closed-loop feedback process: Elevated concentrations of T3, and T4 in the blood plasma inhibit the production of TSH in the pituitary gland. As concentrations of these hormones decrease, the pituitary gland increases production of TSH, and by these processes, a feedback control system is set up to regulate the amount of thyroid hormones that are in the bloodstream. As the true hormone, the effects of T3 on target tissues are roughly four times more potent than those of T4. Of the thyroid hormone that is produced, just about 20% is T3, whereas 80% is produced as T4. Roughly 85% of the circulating T3 is later formed in the thyroid by removal of the iodine atom from the carbon atom number five of the outer ring of T4. In any case, the concentration of T3 in the human blood plasma is about one-fortieth that of T4. This is observed in fact because of the short half-life of T3, which is only 2.5 days. This compares with the half-life of T4, which is about 6.5 days.

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Triiodothyronine

   A T3 thyroid hormone normally synthesized and secreted by the thyroid gland in much smaller quantities than thyroxine (T4). Most T3 is derived from peripheral monodeiodination of T4 at the 5' position of the outer ring of the iodothyronine nucleus. The hormone finally delivered and used by the tissues is mainly T3.

Editors ContributionRate this definition:0.0 / 0 votes

1. triiodothyronine

   Is a type of hormone produced and secreted in the body of a human.

   Triiodothyronine is a hormone that regulates growth and development and metabolism.

   
   

   Submitted by MaryC on October 27, 2015  

Matched Categories

1. • Thyroid Hormone

How to pronounce triiodothyronine?

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Numerology

1. Chaldean Numerology

   The numerical value of triiodothyronine in Chaldean Numerology is: 7

2. Pythagorean Numerology

   The numerical value of triiodothyronine in Pythagorean Numerology is: 2

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=triiodothyronine
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Triiodothyronine
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Triiodothyronine
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=triiodothyronine