| thyrolingual duct | A transitory endodermal tube in the embryo, carrying thyroid-forming tissue at its caudal end; normally, the duct disappears after the thyroid has moved to its definitive location in the neck; its point of origin is regularly marked on the root of the adult tongue by the foramen caecum; occasionally, its incomplete regression results in the formation of cysts along its embryonic course. See: pyramidal lobe of thyroid gland. Synonym: ductus thyroglossus, thyrolingual duct. (05 Mar 2000) |
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| thyrolytic | Causing destruction of thyroid gland cells. Origin: thyro-+ G. Lytikos, dissolving (05 Mar 2000) |
| thyromegaly | Enlargement of the thyroid gland. Origin: thyro-+ G. Megas, large (05 Mar 2000) |
| thyronine | HOC6H4-O-C6H4-CH2-CHNH2-COOH;an amino acid with a diphenyl ether group in the side chain; occurs in proteins only in the form of iodinated derivatives (iodothyronines), such as thyroxine. (05 Mar 2000) |
| thyronines | A group of compounds that are derivatives of the amino acid thyronine, which has a diphenyl ether group in the side chain. (12 Dec 1998) |
| thyropalatine | Denoting the palatopharyngeus muscle. (05 Mar 2000) |
| thyroparathyroidectomy | Excision of thyroid and parathyroid glands. (05 Mar 2000) |
| thyropathy | A disorder of the thyroid gland. Origin: thyro-+ G. Pathos, suffering (05 Mar 2000) |
| thyroperoxidase | A protein that participates in iodine metabolism in the thyroid follicle or in the follicular space; it utilised H2O2 to produce I+. (05 Mar 2000) |
| thyropharyngeal | Denoting the thyropharyngeal portion of the inferior pharyngeal constrictor muscle. (05 Mar 2000) |
| thyropharyngeal part of inferior pharyngeal constrictor muscle | thyropharyngeal part of inferior pharyngeal constrictor muscle |
| thyroplasty | A surgical method of restoring vocal quality by altering the geometry of the thyroid cartilage. Origin: thyro-+ G. Plastos, formed (05 Mar 2000) |
| thyroprival | Relating to thyroprivia, denoting hypothyroidism produced by disease or thyroidectomy. Synonym: thyroprivic, thyroprivous. Origin: thyro-+ L. Privus, deprived of (05 Mar 2000) |
| thyroprivia | A state characterised by reduced activity of the thyroid. (05 Mar 2000) |
| thyroprivic | Relating to thyroprivia, denoting hypothyroidism produced by disease or thyroidectomy. Synonym: thyroprivic, thyroprivous. Origin: thyro-+ L. Privus, deprived of (05 Mar 2000) |