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Definition of pyroligneous acid - 2 dictionary results

pyroligneous acid

–noun Chemistry.
a yellowish, acidic, water-soluble liquid, containing about 10 percent acetic acid, obtained by the destructive distillation of wood: used for smoking meats.
Also called wood vinegar.


Origin:
1780–90
pyroligneous acid  
n.  A reddish-brown wood distillate containing acetic acid, methyl alcohol, acetone, and a tarry residue. Also called wood vinegar.
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