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[flok] /flɒk/
Also, flock. a tuftlike mass, as in a chemical precipitate.
verb (used with object), verb (used without object), flocced, floccing.
to amass or collect into flocs.
Origin of floc
1920-25; < Latin floccus floccus Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for floc
  • The floc particles increase in size to medium and large and change from spherical to irregular.
  • floc laden water starts to flow in and up through the sedimentation basin.
  • As the floc is formed particles in the water are trapped within the floc.
  • Such floc may be the result of inadequate rapid mixing, improper coagulant dosages, or improper flocculation.
  • Wait a few minutes until the floc in the solution has settled.
  • Again invert the bottle several times and wait until the floc has settled.
  • When this occurs, the particles bind with the chemicals and form larger particles, called floc.
  • Optimal coagulant dosages are critical to proper floc formation and filter performance.
  • It causes the particles to clump together and form large particles called floc.
  • The alum coagulates small particulate matter into larger heavier particles called floc.
British Dictionary definitions for floc


another word for floccule
Word Origin
C20: from Latin floccus a tuft of wool, flock²


a small aggregate of flocculent material
something resembling a tuft of wool
Word Origin
C19: from Late Latin flocculus a little tuft; see flock²
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for floc

1921, diminutive of flocculus (see flocculate).

Online Etymology Dictionary, © 2010 Douglas Harper
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