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pyroligneous acid

noun py·ro·lig·ne·ous acid \ˌpī-rō-ˈlig-nē-əs-\

Definition of PYROLIGNEOUS ACID

:  an acid reddish-brown aqueous liquid containing chiefly acetic acid, methanol, wood oils, and tars that is obtained by destructive distillation of wood

Origin of PYROLIGNEOUS ACID

French pyroligneux, from pyr- + ligneux woody, from Latin lignosus, from lignum wood — more at ligneous
First Known Use: 1788

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