thyroxine

(redirected from free thyroxine)
Also found in: Thesaurus, Medical, Encyclopedia.
Related to free thyroxine: free thyroxine index, Free Triiodothyronine

thy·rox·ine

 (thī-rŏk′sēn′, -sĭn) also thy·rox·in (-rŏk′sĭn)
n. Abbr. T4
An iodine-containing hormone, C15H11I4NO4, produced by the thyroid gland, that increases the rate of cell metabolism and regulates growth. A synthetic form is used in the treatment of thyroid disorders.

thyroxine

(θaɪˈrɒksiːn; -sɪn) or

thyroxin

n
(Biochemistry) the principal hormone produced by the thyroid gland: it increases the metabolic rate of tissues and also controls growth, as in amphibian metamorphosis. It can be synthesized or extracted from the thyroid glands of animals and used to treat hypothyroidism. Chemical name: tetra-iodothyronine; formula: C15H11I4NO4
[C19: from thyro- + oxy-2 + -ine2]

thy•rox•ine

(θaɪˈrɒk sin, -sɪn)

also thy•rox•in

(-sɪn)

n.
a hormone of the thyroid gland that regulates the metabolic rate of the body: preparations of it used for treating hypothyroidism.
[1915–20; thyr- + ox- + in (dol) e (orig. thought to be a chemical component)]

thyroxine

A hormone made in the thyroid that is important for growth and mental development.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.thyroxine - hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells; "thyroxine is 65% iodine"
thyroid hormone - any of several closely related compounds that are produced by the thyroid gland and are active metabolically
Translations

thy·rox·ine

, thyroxin
n. tiroxina, hormona producida por la tiroides que contiene yodo; se obtiene sintéticamente de la tiroides de animales y se usa en el tratamiento de hipotiroidismo.

thyroxine

n tiroxina
References in periodicals archive ?
They looked at two types of hormones: thyroid-stimulating hormone and free thyroxine (known as FT4) and their link to atherosclerosis and death due to coronary heart disease, cerebrovascular disease or other artery-related illness.
The proximity of heparin dosing to the abnormal free thyroxine (fT4) concentration suggests artifactual hyperthyroxinemia.
Higher levels of free thyroxine are associated with an increased risk of sudden cardiac death, even in euthyroid adults, according to a report published online Sept.
Methods: We tested pregnant women who underwent their trimester prenatal screening at our hospital from February 2011 to September 2012 for serum thyroid stimulating hormone (TSH) and free thyroxine (FT4) using the Abbott and Roche kits.
Laboratory values revealed a suppressed thyroid-stimulating hormone level with an elevated free thyroxine (T4) level and hypokalemia.
Establishment of trimester-specific thyroid stimulating hormone and free thyroxine reference interval in pregnant Chinese women using the Beckman Coulter UniCel DxI 600," Clinical Chemistry and Laboratory Medicine, vol.
And women who were untreated for low free thyroxine ([T.
Serum levels of free Tri iodothyronine and free Thyroxine were 3.
A 61-year-old man was referred to an endocrinologist at our institution after a diagnosis of hyperthyroidism subsequent to multiple measurements of TSH and free thyroxine on a Roche platform.
Evaluation of serum free thyroxine and thyrotropin concentration in the diagnosis of canine hypothyroidism.
Pakarinen et al, (1988) showed nonbeing change of T3 and also significant decrease in thyroxine (T4) and free thyroxine (fT4) [8].
Even in cases of subclinical hyperthyroidism, which occurs when low thyroid-stimulating hormone (TSH) levels aren't accompanied by higher-than-normal free thyroxine, the risk of AF is increased.