canada balsam

Noun
  1. Yellow transparent exudate of the balsam fir;
    Used as a transparent cement in optical devices (especially in microscopy) and as a mounting medium (synset 114921315)
    is a type of: oleoresin - a naturally occurring mixture of a resin and an essential oil; obtained from certain plants
  2. Medium-sized fir of northeastern North America;
    Leaves smell of balsam when crushed;
    Much used for pulpwood and Christmas trees (synset 111642401)
    is a type of: silver fir - any of various true firs having leaves white or silvery white beneath
    same as: abies balsamea, balm of gilead, balsam fir

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