Dictionary

calcitonin

noun cal·ci·to·nin \ˌkal-sə-ˈtō-nən\

Definition of CALCITONIN

:  a polypeptide hormone especially from the thyroid gland that lowers the level of calcium in the blood plasma —called also thyrocalcitonin

Origin of CALCITONIN

calci- + -tonin (as in serotonin)
First Known Use: 1961

calcitonin

noun cal·ci·to·nin \ˌkal-sə-ˈtō-nən\   (Medical Dictionary)

Medical Definition of CALCITONIN

1
:  a polypeptide hormone especially from the thyroid gland that tends to lower the level of calcium in the blood plasma—called also thyrocalcitonin
2
:  a synthetic or recombinant form of calcitonin used to treat Paget's disease of bone and postmenopausal osteoporosis

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