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parathyroid hormone

American  

noun

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


parathyroid hormone British  

noun

  1. Also called: parathormone.  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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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Example Sentences

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When he arrived in Massachusetts for his first fellowship studying parathyroid hormone, Habener found a ready source of thyroid glands to study from a local Cambridge slaughterhouse that supplied calf meat.

From The Wall Street Journal Dec. 29, 2025

Researchers thought that as vitamin D levels fell, parathyroid hormone levels would increase at a detriment to bones.

From New York Times Jul. 27, 2022

He cited the baby’s elevated levels of parathyroid hormone, which the brain secretes at a higher level when the body’s calcium requirement is not met, Galaznik said.

From Washington Times Feb. 16, 2020

In addition to prolactin and oxytocin, growth hormone, cortisol, parathyroid hormone, and insulin contribute to lactation, in part by facilitating the transport of maternal amino acids, fatty acids, glucose, and calcium to breast milk.

From Textbooks Jun. 19, 2013

"The downside with parathyroid hormone has always been that women have to inject themselves on a daily basis so a new implant, like this, would certainly address compliance issues."

From BBC Feb. 16, 2012

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