- agglutination - a clumping of bacteria or red cells when held together by antibodies (agglutinins)
 --1 is a kind of organic process, biological process
 --1 has particulars: hemagglutination, haemagglutinationDerived form: verb agglutinate2 
- agglutination - the building of words from component morphemes that retain their form and meaning in the process of combining
 --2 is a kind of linguistic process
 --2 has particulars: isoagglutinationDerived form: verb agglutinate1 
- agglutination, agglutinating activity - the coalescing of small particles that are suspended in solution; these larger masses are then (usually) precipitated
 --3 is a kind of chemical process, chemical change, chemical action