Antigen refers to foreign material that enters the body, including bacteria and parasites.
Other /More definition:
Antigen refers to protein on the surface of a microorganism in response to which the immune system generates antibodies

Related Articles

Antigens at■■■■■■■■■■
Antigens refer to the unique proteins found on the surface of bacteria; these proteins are what enable . . . Read More
Antibodies at■■■■■■
Antibodies refer to proteins in the immune system that recognize antigens and help kill invading microorganisms. . . . Read More
Immune system at■■■■■■
Immune system: immune system refers to body’s means of identifying and eliminating any foreign materials . . . Read More
Immune response at■■■■
Immune response refers to the body's defensive reaction to invasion by bacteria, viral agents, or other . . . Read More
B cell at■■■
B cell refers to a type of leukocyte that matures in the bone marrow; attaches to an intruder, and produces . . . Read More
Biological Contaminants at■■■
Biological Contaminants are Living organisms or derivates (eg. viruses, bacteria, fungi, and mammal and . . . Read More
Autoimmune disease at■■■
Autoimmune disease refers to a Condition in which the body’s immune System attacks healthy tissue . . . Read More
Maternal immune hypothesis at■■■
Maternal immune hypothesis refers to the Theory of Sexual orientation that proposes that the fraternal . . . Read More
Antibody generators at■■■
Antibody generators is another name for Antigens that refers to specific immune cells that are earmarked . . . Read More
Pathogen at■■■
A Pathogen is any microorganism that produces disease (bacteria, viruses, yeasts, molds and parasites). . . . Read More