DCHP-1 Online
Canada balsam 
1 the clear resin of the balsam fir, much used as a cement in optical work, formerly used widely as a balm on cuts and minor wounds, and once popular as a chewing gum.
See also: balsam (fir) (def. 3) balsam gum Canadian balsam
- 1811 Exportes . . . 6 Casks Canada Balsam. . . .
- 1893 Another useful thing one comes across in walking over the portages is the Canada balsam, which exudes from a species of spruce. . . .
- 1919 [It is] famous for the blisters on its trunk yielding Canada balsam. . . .
2 a slender evergreen, Abies balsamea, found in Canada from northeastern Alberta eastward, the source of Canada balsam (def. 1).
See also: balsam (fir) (def. 1) Canadian balsam (def. 2)
- 1894 . . . balsam poplar, Canada balsam, paper birch. . . .
- 1923 [He was] coating the entire surface [of a canoe] with . . . Canada-balsam pitch.
- 1811 Exportes . . . 6 Casks Canada Balsam. . . .