protective colloid
noun
: a lyophilic colloid (as gelatin, a natural gum, or a cellulose derivative) that when present in small quantities keeps lyophobic colloids from precipitating under the coagulating action of electrolytes
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“Protective colloid.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/protective%20colloid. Accessed 23 Nov. 2024.
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