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 and Etymology of calcitonin

calci- + -tonin (as in serotonin)


Medical Dictionary

calcitonin

noun cal·ci·to·nin \ ˌkal-sə-ˈtō-nən \

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
  • Calcitonin administered by means of a nasal spray is an antiresorptive agent that has limited efficacy in reducing the risk of vertebral fractures and lacks efficacy in preventing hip fracture.
  • —Murray J. FavusThe New England Journal of Medicine18 Nov. 2010

Learn More about calcitonin


Seen and Heard

What made you want to look up calcitonin? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to remove or wipe out

Get Word of the Day daily email!

Test Your Vocabulary

Find the Cousins

  • a-large-tree-with-many-branches
  • Which pair shares a common word ancestor?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!