bevacizumab

noun

bev·​a·​ciz·​u·​mab ˌbe-və-ˈsi-zu̇-ˌmab 

: an anticancer drug that is a genetically engineered monoclonal antibody administered intravenously to slow or inhibit tumor growth especially in some metastatic forms of cancer (such as colorectal cancer)

Note: Bevacizumab acts by binding to and inhibiting the activity of vascular endothelial growth factor, a protein that promotes the growth of new blood vessels which supply a spreading tumor. It is marketed under the trademark Avastin.