calcitonin

American

[kal-si-toh-nin] / ˌkæl sɪˈtoʊ nɪn /

noun

Biochemistry.

a polypeptide hormone that participates in the regulation of calcium levels in vertebrates by inhibiting loss of calcium from bone to the blood.

calcitonin British

/ ˌkælsɪˈtəʊnɪn /

noun

Also called: thyrocalcitonin. a hormone secreted by the thyroid that inhibits the release of calcium from the skeleton and prevents a build-up of calcium in the blood Compare parathyroid hormone

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

calcitonin Scientific

/ kăl′sĭ-tō′nĭn /

A peptide hormone secreted by the thyroid gland that stimulates bone formation and lowers blood calcium and phosphate levels.

Etymology

Origin of calcitonin

First recorded in 1960–65; calci- + tone + -in ²

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Example Sentences

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See Examples For:

calcitonin

Interestingly, a similar increase was also observed in the levels of another stress neuropeptide closely related to PACAP, the calcitonin gene-related peptide, or CGRP.

From Science Daily ● Dec. 1, 2023

Cells in thyroid gland sense calcium decrease causing calcitonin release and stimulating calcium absorption.

From Textbooks ● Jun. 9, 2022

Calcium and phosphate are regulated by PTH, calcitriol, and calcitonin.

From Textbooks ● Jun. 19, 2013

When blood calcium levels return to normal, the thyroid gland stops secreting calcitonin.

From Textbooks ● Jun. 19, 2013

A third hormone, calcitonin, is also produced by the thyroid.

From Textbooks ● Apr. 25, 2013

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023