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Thyroid   Listen
adjective
Thyroid  adj.  
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.





Collaborative International Dictionary of English 0.48


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"Thyroid" Quotes from Famous Books



... adenoid vegetation. It is said to be caused by phimosis, and to be cured by circumcision. It is said that the urine is often too acid and so irritating that the bladder refuses to retain it for the usual length of time. It is said that enuresis may be due to a deficiency of the thyroid secretion, and that it can be cured by thyroid extract. Such a number of rival causes may make us hesitate to accept the claims of any one of them. Certainly I have not been able to satisfy myself that any one of these conditions ...
— The Nervous Child • Hector Charles Cameron
... earthly use has a man for valves in the intercostal veins which carry blood almost horizontally backward to the azygos veins? When recumbent, these valves are an actual obstacle to the free flow of the blood. The inferior thyroid veins which drop their blood into the innominate are obstructed by valves at their junction. Two pairs of valves are situate in the external jugular, and another pair in the internal jugular, but they do not prevent ...
— Scientific American Supplement, No. 447, July 26, 1884 • Various
... The 'thyroid cartilage' envelopes and protects all the rest, and particularly the lining membrane of the larynx, which vibrates from the impulse of the air that passes. The vibrations spread in every direction ...
— The Dog - A nineteenth-century dog-lovers' manual, - a combination of the essential and the esoteric. • William Youatt


Words linked to "Thyroid" :   inferior thyroid vein, ductless gland, thyroid cartilage, endocrine, thyroid hormone, thyroid gland, middle thyroid vein, thyroid-stimulating hormone, thyroidal, superior thyroid vein, thyroid vein, endocrine gland


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