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| a colorless, flammable gas, C4H10, a saturated aliphatic existing in two isometric forms: used chiefly in the manufacture of rubber and as fuel |
| of, pertaining to, or tending to develop into icelike crystals: glacial phosphoric acid |
| wetting agent | |
| —n | |
| chem any substance added to a liquid to lower its surface tension and thus increase its ability to spread across or penetrate into a solid | |
wetting agent
chemical substance that increases the spreading and penetrating properties of a liquid by lowering its surface tension-that is, the tendency of its molecules to adhere to each other. See detergent; surface-active agent
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