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[flok-yuh-leyt] /ˈflɒk yəˌleɪt/
verb (used with object), flocculated, flocculating.
to form into flocculent masses.
verb (used without object), flocculated, flocculating.
to form flocculent masses, as a cloud or a chemical precipitate; form aggregated or compound masses of particles.
Origin of flocculate
1820-30; floccul(us) + -ate1
Related forms
[flok-yuh-luh-buh l] /ˈflɒk yə lə bəl/ (Show IPA),
flocculation, noun
flocculator, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for flocculation
  • After the raw water leaves the aeration area, it enters the flocculation basin.
  • Filtration is performed directly after the flocculation stage of treatment.
  • The jar test is used to determine the proper chemical dosage required for good coagulation and flocculation of water.
  • To this mixture, isooctane was added to cause flocculation and asphaltene precipitation.
British Dictionary definitions for flocculation


to form or be formed into an aggregated flocculent mass
Derived Forms
flocculation, noun
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 flocculation

1885, from flocculate + -ion.



1877, from flocculus (1799, from Modern Latin diminutive of Latin floccus "flock of wool") + -ate. Related: Flocculated; flocculating.

Online Etymology Dictionary, © 2010 Douglas Harper
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flocculation in Medicine

flocculation floc·cu·la·tion (flŏk'yə-lā'shən) or floc·cu·lence (flŏk'yə-ləns)

  1. The process of becoming flocculent.

  2. Precipitation from solution in the form of fleecy masses.

floc'cu·late' v.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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flocculation in Science
The process by which individual particles of clay aggregate into clotlike masses or precipitate into small lumps. Flocculation occurs as a result of a chemical reaction between the clay particles and another substance, usually salt water.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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