noun Immunology.
- an antibody that causes agglutination.
noun
- a substance, such as an antibody or a lectin, that causes agglutination of cells or bacteria
n.
- A substance, such as an antibody, that is capable of causing agglutination of a particular antigen, especially red blood cells or bacteria.
- A substance, other than a specific agglutinating antibody, that causes organic particles to agglutinate.