RESIN

n. Re2z1n. Gr., pijri'vij. Lat., resina, colophonium, resina colophonium, pix grceca (all 2d def.). Fr., resine (1st def.), arcanson (2d def.). Ger., Harz (1st def.), Geigenharz (2d def.j, Fichtenharz (2d def.). 1. An excretory product of various plants; an amorphous, more or le translucent, readily fusible substance, insoluble in water, mostly soluble in alcohol, ether, e ential oils, or hot fixed oils, and combining with alkalies to form soaps. It is sometimes mixed with volatile oils (see OLEO-r.). sometimes contains benzoic or cinnamic acids, either with or without volatile oil (see BALSAM), and sometimes contains mucilaginous matter (see GrM-r.). It is also obtained in a fo il state (see AMBER and Australian DAMMAR). 2. Rosin, colophony; of the U. S. Ph. and Br. Ph., the residue left after the distillation of oil of turpentine. It has a sp. gr. of 1'070 to 1'080, melts at about 135 C., and is soluble in alcohol, in ether, and in fixed or e ential oils. It is the anhydride. C44HB.jO4, of abietic acid. It is used as a stimulant and preservative const i tut ent of plasters and ointments. The Fr. Cod. distinguishes between this resin (colophane) and white r. (poix-resine). [B; B, 5, 18, 19, 121, 229, 291 (a, 35).] Acaroid r. Lat.. acnroides resina, gummi acaroides. Fr., resine acaro'ide, gomme de Botany Ray. Ger., Botany-Bay-Harz, Acaroidharz. A r. occurring as a spontaneous exudation on the leaves and in the stem of Xanthorrhcea has til is and other species of Xanthorrhcea. It contains benzoic and cinnamic acids, and is used as a stimulating expectorant and tonic and in diarrhrea, dyspepsia, and colic. [B. 5, 19 (a, 21); B, 33.] See also Red acaroid r. Aldehyde r. A light-brown resinous body obtained by heating aldehyde with potash in solution; also formed in alcoholic solutions of the alkalies and in acetal, when kept for a long time. [B, 2, 5 (a, 35).] Anime r. SeeANiMK. Balsam and r. clyster. An enema of 25 grammes of copaiva. the yolk of 1 egg, and 0'05 gramme of extract of opium. [L, 57 (a, 21).] Beta-r. See R. of MASTIC (2d def.). Bili.-iry r. A resinous substance obtained by distilling bile. [B, 38 (a, 14).] Botany-Bay r. See Acaroid r. Cayenne r. See CAOUTCHOUC. Courbaril r. Fr., anime occidental. See South American ANIME E, he; E2, ell; G, go; I, die; Is, in; N, in; N2, tank; [s. 390]