Canada balsam

名词 canada balsam:

1. yellow transparent exudate of the balsam fir; used as a transparent cement in optical devices (especially in microscopy) and as a mounting medium
2. medium-sized fir of northeastern North America; leaves smell of balsam when crushed; much used for pulpwood and Christmas trees
   同义词：balsam fir, balm of Gilead, Abies balsamea

1. Any of several other fragrant plant resins, such as Canada balsam.
   芳香脂植物其他几种芳香植物脂中的一种，如加拿大香脂