etidronate disodium

[ĕt′ĭ-drōnāt′]
n.
  1. A drug that affects bone resorption and is used in the treatment of Paget's disease, heterotopic ossification, and hypercalcemia of malignancy.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.