Medical Definition For Antigen

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Antigen Definition & Meaning - Merriam-Webster

https://www.merriam-webster.com/dictionary/antigen

noun. : any substance (such as an immunogen or a hapten) foreign to the body that evokes an immune response either alone or after forming a complex with a larger molecule (such as a protein) and that is capable of binding with a product (such as an antibody or T cell) of …

Antigen | definition of Antigen by Medical dictionary

https://medical-dictionary.thefreedictionary.com/antigen

1. one that combines with antibody produced in response to a different but related antigen, owing to similarity of antigenic determinants. 2. identical antigens in two bacterial strains, …

Antigen: MedlinePlus Medical Encyclopedia

https://medlineplus.gov/ency/article/002224.htm

An antigen is any substance that causes your immune system to produce antibodies against it. This means your immune system does not recognize the substance, and is …

Antigen: What It Is, Function, Types, & Testing

https://my.clevelandclinic.org/health/diseases/24067-antigen

What is an antigen? An antigen is any kind of marker — like a protein or string of amino acids — that your immune system can recognize. If this definition seems a little vague to …

Antigen | Definition, Function, Types, & Facts | Britannica

https://www.britannica.com/science/antigen

antigen, substance that is capable of stimulating an immune response, specifically activating lymphocytes, which are the body’s …

Antigens: Types, How They Work, Testing, and More

https://www.verywellhealth.com/what-is-an-antigen-5083801

An antigen is a molecule that stimulates an immune response by activating leukocytes (white blood cells) that fight disease. Antigens may be present on invaders , such as bacteria, …

Antigen - Wikipedia

https://en.wikipedia.org/wiki/Antigen

In immunology, an antigen (Ag) is a molecule or molecular structure or any foreign particulate matter or a pollen grain that can bind to a specific antibody or T-cell receptor. The presence of antigens in the …

Antigen Definition & Meaning | Dictionary.com

https://www.dictionary.com/browse/antigen

What does antigen mean? An antigen is a substance that causes an immune response in the body—specifically, an antigen causes the body to produce antibodies. Antigens are things like viruses, bacteria, toxins, …

What Is a COVID-19 Antigen Test—And How Is It …

https://www.health.com/condition/infectious-diseases/coronavirus/coronavirus-antigen-test

"An antigen is a substance recognized by the body's immune system, which can [then] respond by generating proteins called antibodies that specifically recognize that antigen," Albert Shaw, MD,...

Antigens | definition of Antigens by Medical dictionary

https://medical-dictionary.thefreedictionary.com/Antigens

Antigens. Markers on the outside of such organisms as bacteria and viruses, which allow antibodies to recognize foreign invaders. Mentioned in: Measles, Q Fever, …

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