Source : Webster's Revised Unabridged Dictionary (1913)

Auriculate \Au*ric"u*late\, Auriculated \Au*ric"u*la`ted\, a.
   [See {Auricle}.] (Biol.)
   Having ears or appendages like ears; eared. Esp.:
   (a) (Bot.) Having lobes or appendages like the ear; shaped
       like the ear; auricled.
   (b) (Zo["o]l.) Having an angular projection on one or both
       sides, as in certain bivalve shells, the foot of some
       gastropods, etc.

   {Auriculate leaf}, one having small appended leaves or lobes
      on each side of its petiole or base.