1. 
   Deflocculation
   Increased stability of solids dispersed in a liquid by adding substances which form protective colloids.
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
2. 
   deflocculation
   the dispersion of solids that have stuck together in drilling fluid, usually by means of chemical thinners. See flocculation.
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   

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