Definitions

1. noun

a hormone produced by the thyroid gland that lowers blood calcium levels and is used in the treatment of hypercalcemia and certain bone diseases

“The doctor prescribed calcitonin to help her patient’s osteoporosis.”

2. noun

a peptide hormone that is a product of the C-cells of the thyroid gland

“Calcitonin is a protein hormone that helps regulate calcium levels in the blood.”