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noun, Biochemistry, Physiology.
a polypeptide hormone, produced in the parathyroid glands, that helps regulate the blood levels of calcium and phosphate.
Abbreviation: PTH.
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.


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  • Parathyrotropic

    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.

  • Paratonic

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