Source : Webster's Revised Unabridged Dictionary (1913)

Flocculate \Floc"cu*late\, v. t.
   To convert into floccules or flocculent aggregates; to make
   granular or crumbly; as, the flocculating of a soil improves
   its mechanical condition.

         When applied to clay soils it [lime] binds the small
         particles together, or flocculates them. --I. P.
                                                  Roberts.

Flocculate \Floc"cu*late\, v. i. [imp. & p. p. {Flocculated}; p.
   pr. & vb. n. {Flocculating}.] (Geol.)
   To aggregate into small lumps.

Flocculate \Floc"cu*late\, a. (Zo["o]l.)
   Furnished with tufts of curly hairs, as some insects.

Source : WordNet®

flocculate
     v 1: cause to become a fluffy or lumpy aggregate; "The chemist
          flocculated the suspended material"
     2: form into an aggregated lumpy or fluffy  mass; "the
        protoplasms flocculated"