Flocculation (in polymer science): Reversible formation of aggregates in which the particles are not in physical contact.Agglomeration (except in polymer science) Coagulation (except in polymer science) Flocculation (except in polymer science) Process of contact and adhesion whereby dispersed molecules or particles are held together by weak physical interactions ultimately leading to phase separation by the formation of precipitates of larger than colloidal size.Note 1: In contrast to aggregation, agglomeration is a reversible process.Note 2: The definition proposed here is recommended for distinguishing agglomeration from aggregation.Note 3: Quotation from ref.Flocculation, in the field of chemistry, is a process wherein colloids come out of suspension in the form of floc or flake; either spontaneously or due to the addition of a clarifying agent. The action differs from precipitation in that, prior to flocculation, colloids are merely suspended in a liquid and not actually dissolved in a solution. In the flocculated system, there is no formation of a cake, since all the flocs are in the suspension.