Word: Pyroligneous Acid
Part of Speech: Noun
Definition: Pyroligneous acid is a red-brown liquid that is produced when wood is heated in the absence of air (a process called distillation). It contains several substances, including acetic acid (which gives vinegar its sour taste), methanol, acetone, wood oils, and tars.
In summary, pyroligneous acid is an important chemical derived from wood, useful in various applications.