资料来源 : Webster's Revised Unabridged Dictionary (1913)

Biauriculate \Bi`au*ric"u*late\, a. [Pref. bi- + auriculate.]
   1. (Anat.) Having two auricles, as the heart of mammals,
      birds, and reptiles.

   2. (Bot. & Zo["o]l.) Having two earlike projections at its
      base, as a leaf.