(1) Substance manufactured in thin sheets from wood, rags, or other materials. (2) A square of paper folded over so as to form an envelope containing a dose of any medicinal powder. (3) A piece of blotting paper or filter paper impregnated with a medicinal solution, dried, and burned; formerly, the fumes were inhaled treat asthma and other respiratory afflictions. [L. papyrus; G. papyros, a kind of rush, from which writing paper was made]