agglutinin
Definition
Noun: * An antibody that causes agustination of a specific antigen: A protein produced by the immune system that binds to specific foreign particles (antigens), such as bacteria or red blood cells, causing them to clump together (agglutinate).
Usage
- This is a technical term used primarily in immunology, medicine, and biology.
- It is used to describe a specific type of antibody with a clumping function.
- It is often modified by the antigen it targets (e.g., anti-A agglutinin).
Examples
- The patient's serum contained a high titer of cold agglutinin, which reacted at lower temperatures.
- Blood typing relies on the reaction between red cell antigens and their corresponding agglutinins.
- The presence of the specific agglutinin confirmed the laboratory diagnosis.
Advanced Usage
- "Cold agglutinin": An antibody that causes red blood cells to clump at temperatures significantly below body temperature, often associated with certain diseases.
- "Agglutinin titer": A measurement of the concentration or strength of agglutinins in a blood sample, often used to monitor the progression of an infection or immune response.
Variants and Related Words
- Agglutinate (verb): To cause particles to clump together.
- The antibody will agglutinate the bacteria.
- Agglutination (noun): The process or result of clumping.
- Agglutination was observed in the test tube.
- Anti-agglutinin (noun): A substance that inhibits the action of an agglutinin.
Synonyms
- Clumping antibody (descriptive synonym)
- Specific antibody (broader category)
Related Phrases
- Agglutinin test: A diagnostic procedure that detects the presence of specific agglutinins in a sample.
- To act as an agglutinin: To function by causing clumping.
- The antibody was found to act as an agglutinin against the pathogen.
Noun
-
an antibody that causes agglutination of a specific antigen
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