Antibody-dependent cellular cytotoxicity
Antibody-dependent cellular cytotoxicity ( ADCC ) , also referred to as antibody-dependent cell-mediated cytotoxicity , is a mechanism of cell-mediated immune defense whereby an effector cell of the immune system actively lyses a target cell , whose membrane-surface antigens have been bound by specific antibodies . 
<triplet> antibodies <subj> immune system <obj> part of