1. (

• agglomerate

) volcanic rock consisting of large fragments fused together ;

2. (

• pile ,
• heap ,
• mound ,
• agglomerate ,
• cumulation ,
• cumulus

) a collection of objects laid on top of each other ;

1. (

• agglomerate

) form into one cluster ;

1. (

• agglomerate ,
• agglomerated ,
• agglomerative ,
• clustered

) clustered together but not coherent; "an agglomerated flower head" ;