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protective colloid

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protective colloid

–noun Physical Chemistry.
a lyophilic colloid added to a lyophobic sol to lessen its sensitivity to the precipitating effect of an electrolyte.

Origin:
1905–10
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Medical Dictionary

Main Entry: protective colloid
Function: noun
: a lyophilic colloid (as gelatin, a natural gum, or a cellulose derivative) that when present in small quantities keepslyophobic colloids from precipitating under the coagulating action of electrolytes
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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