defoamer

any chemical that prevents of lessens frothing or foaming in another agent.

defoamer

(from the article `surface coating`) One problem with specialty additives is that they often have a surfactant nature and consequently stabilize foam in the liquid coating. Portions of ...
Found on http://www.britannica.com/eb/a-z/d/25

Defoamer

A defoamer or an anti-foaming agent is a chemical additive that reduces and hinders the formation of foam in industrial process liquids. The terms anti-foam agent and defoamer are often used interchangeably. Commonly used agents are insoluble oils, polydimethylsiloxanes and other silicones, certain alcohols, stearates and glycols. The additive is ...
Found on http://en.wikipedia.org/wiki/Defoamer

Defoamer

A chemical additive that reduces and hinders the formation of foam in industrial process liquids. A defoamer is normally used in industrial processes to increase production speed and reduce other problems. It addresses both problems with surface foam and entrained or entrapped air. The chemicals used as defoamers are typically surface active agents...
Found on https://www.encyclo.co.uk/local/22436
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