flocculate
1. [ verb ] form into an aggregated lumpy or fluffy mass
Examples:

"the protoplasms flocculated"

Related terms: become change flocculation
2. [ verb ] cause to become a fluffy or lumpy aggregate
Examples:

"The chemist flocculated the suspended material"

Related terms: change
Similar spelling:   floccule
  flocculation
  flocculent
  flagellate
  flagellated