charta, gen. and pi. char'ta

(kar'tah) [L. a sheet of paper.] i. pharmaceutical preparation consisting of a piece of paper impregnated or coated on one side with a medicinal substance. ^. A folded paper holding medicinal powder, antasthmat'ica, blotting paper soaked in an infusion of belladonna, digitalis, sage, stramonium leaves, and niter, and after drying moistened again with tincture of benzoin, c. canthar'idis, c. epispas'tic a, paper spread with a mixture of spermaceti, olive oil, rosin, Canada balsam, and cantharides. c. ezplorato'ria coeru'- lea et ru'bra, litmus paper, c. nitra'ta, c. pot as'- sii nitra'tis, niter-paper, blotting paper soaked in a 20 per cent, solution of pota ium nitrate and dried; the fumes of this when burning are inhaled in asthma, c. sin a'pis (Br.), t. sinapisa'ta, mustard paper, emplastrum sinapis (U.S.), a suspension of powdered mustard in liquor caoutchouc is applied to one side of a rather stiff paper and allowed to dry.