from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A hormone produced by the parathyroid glands that regulates the amount of calcium and phosphorus in the body.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A polypeptide hormone that is released by the chief cells of the parathyroid glands and is involved in raising the levels of calcium ions in the blood.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. hormone synthesized and released into the blood stream by the parathyroid glands; regulates phosphorus and calcium in the body and functions in neuromuscular excitation and blood clotting
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