Antibody. Definition

Medical Definition: Antibody

A type of protein produced and synthesized by plasma cells (white blood cells) immune system and released into the blood in response to an antigen (foreign substance or protein) that neutralizes. Each antibody can bind to one specific antigen. The purpose of this union is to help destroy the antigen. Antibodies defend against foreign agents such as bacteria. They work in various ways, depending on the nature of the antigen. Some antibodies destroy antigens directly. Others make it easy to white blood cells so that they destroy the antigen.

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