GUM-RESIN. This term is applied to an inspissated juice afforded by many kinds of plants, which combines the properties of gums and resins, being partly soluble in water, partly in alcohol. The principal gum-resins are aloes, ammoniac, assafoetida, galbanum, gamboge, euphorbium, olibanum, scammony, besides a great variety of other concrete juices. The chief of these are noticed under their respective names, as also the resins properly so called.