What is a thin balsam or wood oil derived from the Diptcrocarpus lævis, an East Indian tree. It is used in medicine, and as a substitute for linseed oil in the coarser kinds of paint called?

gurjun — A thin balsam or wood oil derived from the Diptcrocarpus lævis, an East Indian tree. It is used in medicine, and as a substitute for linseed oil in the coarser kinds of paint. (Webster's 1913.)

Sources