noun, Biochemistry, Physiology.
a polypeptide hormone, produced in the parathyroid glands, that helps regulate the blood levels of calcium and phosphate.
the hormone secreted by the parathyroid glands that controls the level of calcium in the blood: a deficiency of the hormone often results in tetany Also called parathormone (ˌpærəˈθɔːməʊn)
parathyroid hormone n.
Abbr. PTH A peptide hormone produced by the parathyroid glands that regulates the amount of calcium in the body. Also called parathyrin.
- Parathyroid tetany
parathyroid tetany n. Tetany following surgical injury to or excision of the parathyroid glands. Also called parathyroprival tetany.
[par-uh-tuh-loo-i-deen, -din] /ˌpær ə təˈlu ɪˌdin, -dɪn/ noun, Chemistry. 1. a white, flaky, lustrous, very slightly water-soluble solid, C 7 H 9 N, the para isomer of toluidine, used in the manufacture of dyes, in organic synthesis, and as a reagent in tests for nitrite, lignin, and phloroglucinol.
parathyrotropic par·a·thy·ro·trop·ic (pār’ə-thī’rō-trŏp’ĭk, -trō’pĭk) or par·a·thy·ro·troph·ic (-trŏf’ĭk, -trō’fĭk) adj. Influencing the activity or growth of the parathyroid glands.
/ˌpærəˈtɒnɪk/ adjective 1. (botany) (of a plant movement) occurring in response to an external stimulus