- a pale yellow or greenish, slightly fluorescent, clear, viscous, bitter-tasting, water-insoluble liquid, having a pleasant, aromatic, pinelike odor, and solidifying on exposure to air: obtained from the balsam fir, Abies balsamea, and used chiefly for mounting objects on microscope slides, in the manufacture of fine lacquers, and as a cement for lenses.
Origin of Canada balsam
An Americanism dating back to 1810–20
Also called Canada turpentine, balsam of fir.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for balsam fir
If this consists of glass, Canada-balsam or marine glue is best.An Elementary Text-book of the Microscope
John William Griffith
- 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
- another name for balsam fir