: a person who opposes a person or group in authority. He was a rebel against the school administration. [+] more examples [-] hide examples [+] Example sentences [-] Hide examples. : a person who does not obey rules or accept normal standards of behavior, dress, etc. He is a typical teenage rebel.
antibody-antigen complex. a complex formed by the combining of antibody and antigen. Called also immune complex. Golgi complex. a complex cellular organelle involved in the synthesis of glycoproteins, lipoproteins, membrane-bound proteins and lysosomal enzymes. See also golgi apparatus.
In most cases, an antibody can only bind one specific antigen; in some instances, however, antibodies may bind more than one antigen. An antigen is a molecule that binds to Ag-specific receptors, but cannot necessarily induce an immune response in the body by itself. Antigens are usually peptides, polysaccharides or lipids.