res i'na

[L.] i. Resin. 2. (U.S., Br.) Rosin, colophony, the residue after distillation of the volatile oil from turpentine; a brittle, easily powdered, translucent, resinous ma , of an amber to reddish brown color, soluble in ether and chloroform, but insoluble in water; employed in plasters to render them adhesive and also in ointments to render them locally stimulating, r. co'pal, copal. r. draco'nis, dragon's blood, a resin obtained from the fruit of Calamus draco, an East Indian palm formerly an ingredient of plasters but now seldom used. r. jala'pae (U.S.), resin of jalap, in yellowish brown ma es, soluble in alcohol purgative in doses of gr. 2—5(0.13—0.3). r. podophyl'li (U.S.), podophylli resina (Br.), resin of podophyllum, podophyllin, a grayish to greenish yellow powder, soluble in alcohol; laxative in doses of gr. ^V^V (0.003-0.006). r. podophyl'li in'dici (B.A.), resin of Indian podophyllum, from P. emodi; cathartic and cholagogue in doses of gr. J-i (0.015-0.06). r. scammo'nise (U.S.), scammo'nii r. (Br.), resin of scammony, occurs in dark yellow resinous ma es or a light yellow powder of little odor or taste; dose, gr. 5-10 (0.3-0.6).