Source : Webster's Revised Unabridged Dictionary (1913)

Floccule \Floc"cule\, n. [See {Flocculus}.]
   1. A detached mass of loosely fibrous structure like a
      shredded tuft of wool.

   2. (Chem.) Specif.: A small particle of an insoluble
      substance formed in a liquid by the union of smaller
      particles.

Source : WordNet®

floccule
     n : a small loosely aggregated mass of flocculent material
         suspended in or precipitated from a liquid [syn: {floc}]