a ratio relating four points in the real or complex plane.
[kraws-ree-akt, kros-] /ˈkrɔs riˈækt, ˈkrɒs-/ verb (used without object), Immunology. (of an antigen, antibody, or lymphocyte) 1. to participate in a cross-reaction.
- Cross-reacting agglutinin
cross-reacting agglutinin n. See group agglutinin.
- Cross-reacting antibody
cross-reacting antibody n. An antibody that reacts with an antigen other than the one that induced its production.
[kraws-ree-ak-shuh n-kros-] /ˈkrɔs riˈæk ʃənˈkrɒs-/ noun 1. an immunologic reaction between a given antigen and an antibody or lymphokine that is specific for a different antigen resembling the first one.