Definition of wetting agent
: a substance that by becoming adsorbed prevents a surface from being repellent to a wetting liquid and is used especially in mixing solids with liquids or spreading liquids on surfaces
First Known Use of wetting agent
Medical Definition of wetting agent
: a substance that promotes the spreading of a liquid on a surface or the penetration of a liquid into a material especially by becoming adsorbed in such a way that the liquid is no longer repelled
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