Biauriculate \Bi`au*ric"u*late\, a. [Pref. bi- + auriculate.]
1. (Anat.) Having two auricles, as the heart of mammals,
birds, and reptiles.
[1913 Webster]
2. (Bot. & Zool.) Having two earlike projections at its base,
as a leaf.
[1913 Webster] Biaxal