|1.||a yellow transparent resin obtained from the balsam fir. Because its refractive index is similar to that of glass, it is used as an adhesive in optical devices and as a mounting medium for microscope specimens|
|2.||another name for balsam fir|
oleoresin consisting of a viscous yellowish to greenish liquid exuded by the balsam fir of North America, Abies balsamea. It is actually a turpentine, belonging to the class of oleoresins (natural products consisting of a resin dissolved in an essential oil), and not a balsam.
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