from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun 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.
- noun biochemistry A
polypeptide hormonethat is released by the chief cellsof the parathyroid glandsand is involved in raising the levels of calciumions in the blood.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun 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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