calcitonin defined in 1951 yearcalcitonin - calcitonin (thyrocalcitonin);
calcitonin - Vertebrate hormone secreted by parafollicular cells of mammalian thyroid, or from separate gland (developed from gill pouches) in other vertebrates. Controls blood level of calcium, opposing the action of the parathyroid by reducing release of calcium from bone.
near calcitonin in Knolik
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