from The American Heritage® Dictionary of the English Language, 4th Edition
- n. See calcitonin.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A hormone, secreted by parenchymal cells, that regulates calcium and phosphate metabolism.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. thyroid hormone that tends to lower the level of calcium in the blood plasma and inhibit resorption of bone
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