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| py·ro·lig·ne·ous ac·id [ prō lìgnee əss ássid ] |
noun |
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| Definition: |
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acid from destructive distillation of wood: a reddish brown liquid of which the primary constituent is acetic acid, produced by the destructive distillation of wood. Among its impurities may be acetone, methanol, wood oils, and tars.
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