Ma'anar ƙamus na kalmar "hemagglutinate" ita ce haifar da jajayen ƙwayoyin jini su taru tare ta hanyar ɗaure ga masu karɓar saman su. Hemagglutination wani tsari ne da aka fi gani a cikin cututtukan ƙwayoyin cuta inda kwayar cutar ta rataye saman jajayen ƙwayoyin jini, yana sa su manne tare a cikin dunƙule ko tarawa. Hakanan ana amfani da wannan al'amari a gwaje-gwajen dakin gwaje-gwaje don gano akwai takamaiman ƙwayoyin rigakafi ko ƙwayoyin cuta, kamar yadda za'a iya lura da abin da ke faruwa a gani.