1. (

• agglutination ,

) a clumping of bacteria or red cells when held together by antibodies (agglutinins) ;

2. (

• agglutination

) the building of words from component morphemes that retain their form and meaning in the process of combining ;

3. (

• agglutination ,
• agglutinating_activity

) the coalescing of small particles that are suspended in solution; these larger masses are then (usually) precipitated ;