zoledronic acid

noun

zo·​le·​dron·​ic acid ˌzō-lə-ˈdrä-nik- 

: a bisphosphonate drug C₅H₁₀N₂O₇P₂·H₂O that inhibits bone resorption and that is administered intravenously to treat disorders of bone (such as osteoporosis and Paget's disease of bone) and to reduce bone loss associated with some cancer treatments

Note: Zoledronic acid is marketed under the trademarks Reclast and Zometa.