Antibody - Wikipedia
An antibody (Ab), or immunoglobulin (Ig), is a large protein belonging to the immunoglobulin superfamily which is used by the immune system to identify and neutralize antigens such as those that exist on bacteria and virus cells, including those that cause disease.

Antibodies: Definition, Types & Function - Cleveland Clinic
Antibodies are protective proteins produced by your immune system. They attach to antigens (foreign substances) — such as bacteria, fungi, viruses and toxins — and remove them from your body. What are antibodies? Antibodies are proteins that protect you when an unwanted substance enters your body.

Antibody | Definition, Structure, Function, & Types | Britannica
Antibody, a protective protein produced by the immune system in response to the presence of a foreign substance, called an antigen. Antibodies recognize and latch onto antigens in order to remove them from the body.

Types of Antibodies and Their Functions
There are five types of antibodies in the human body, each with its own function in protecting against infection and disease. Here is a look at the types of antibodies, their location in the body, and their functions.

Antibody And Antigen - Immunology Explained
Antibodies are proteins, produced by cells of the immune system, that detect and stick to antigens, flagging them for destruction by the immune system. Antigens are substances that prompt the body to launch an immune response. Common antigens are pathogens or allergens.

Antibody: Definition, Structure, Types, Forms, Functions
Produced and secreted by plasma cells, antibodies are soluble molecules that travel throughout the body to find and bind to their targets which are foreign substances known as antigens.

Antibody - National Human Genome Research Institute
An antibody is a protein component of the immune system that circulates in the blood, recognizes foreign substances like bacteria and viruses, and neutralizes them.

Antibodies: Definition, Types, and Function - Health
Antibodies are proteins that circulate in the blood and protect against foreign antigenic substances such as bacteria, viruses, fungi, parasites, chemicals, or toxins. They are Y-shaped...

Antibody Basics: The Complete Guide | Antibodies.com
Antibodies, also called immunoglobulins (Ig), are Y-shaped proteins produced by the immune system to recognize and bind to foreign substances or organisms such as bacteria. Binding to these substances neutralizes the invaders or recruits other components of the immune system to destroy them.

What Is an Antibody? Functions, Types, and Medical Uses
Learn what an antibody is, how it works in the immune system, the main antibody types, and their uses in vaccines, diagnostics, and medical therapies.