Exerts the same biological effects as thyroxine but is more potent and briefer

• Thyroid hormone similar to thyroxine but with one less iodine atom per molecule and produced in smaller quantity

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
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.] Shaped like an oblong shield; shield-shaped; as, the thyroid cartilage. (Anat.) Of ...

Wiktionary Word definitions in Wiktionary
n. (context biochemistry English) The most powerful thyroid hormone, affecting almost every process in the body, including body temperature, growth, and heart rate.

WordNet Word definitions in WordNet
n. 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 [syn: liothyronine , T ]

Wikipedia Word definitions in Wikipedia
Triiodothyronine , also known as T , 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 T and its prohormone thyroxine (T) is ...