antibody[an′ti bäd′ē, -tə-]
- The definition of an antibody is a protein molecule that can be found in the blood and is intended to attack bacteria, viruses and transplanted organs.
An example of an antibody is rituximab.
Origin of antibodyTranslation of German Antik&odie;rper : anti-, antagonistic (from Latin anti-, anti-) + K&odie;rper, body.
When bacteria enter a flesh wound, a B cell releases antibodies, which attach to the bacteria and direct them toward a macrophage for destruction.