parathyrin

Definition / meaning of parathyrin

A substance made by the parathyroid gland that helps the body store and use calcium. A higher-than-normal amount of parathyrin causes high levels of calcium in the blood and may be a sign of disease. Also called parathormone, parathyroid hormone, and PTH.

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Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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