antibody n pl , -bodies any of various proteins produced in the blood in response to the presence of an antigen. By becoming attached to antigens on infectious organisms antibodies can render them harmless or cause them to be destroyed See also →
immunoglobulin
hybrid antibody
n a synthetic antibody that is able to combine with two different antigens
monoclonal antibody
n an antibody, produced by a single clone of cells grown in culture, that is both pure and specific and is capable of proliferating indefinitely to produce unlimited quantities of identical antibodies: used in diagnosis, therapy, and biotechnology