The Collaborative International Dictionary
Biauriculate
Biauriculate \Bi`au*ric"u*late\, a. [Pref. bi- + auriculate.]
(Anat.) Having two auricles, as the heart of mammals, birds, and reptiles.
(Bot. & Zo["o]l.) Having two earlike projections at its base, as a leaf.
Wiktionary
biauriculate
a. 1 Having two auricles 2 Having two ear-like projections at the base.