Auricula \Au*ric"u*la\, n.; pl. L. Auricul[ae], E. Auriculas. [L. auricula. See Auricle.]

1. (Bot.) (a) A species of Primula, or primrose, called also, from the shape of its leaves, bear's-ear. (b)
   (b) A species of Hirneola (Hirneola auricula), a membranaceous fungus, called also auricula Jud[ae], or Jew's-ear. --P. Cyc. [1913 Webster]

2. (Zool.)
   (a) A genus of air-breathing mollusks mostly found near the sea, where the water is brackish.
   (b) One of the five arched processes of the shell around the jaws of a sea urchin. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

auricula

Source: WordNet (r) 2.0
 

Auricula \Au*ric"u*la\, n.; pl. L. Auricul[ae], E. Auriculas. [L. auricula. See Auricle.]

1. (Bot.) (a) A species of Primula, or primrose, called also, from the shape of its leaves, bear's-ear. (b)
   (b) A species of Hirneola (H. auricula), a membranaceous fungus, called also auricula Jud[ae], or Jew's-ear. --P. Cyc.

2. (Zo["o]l.)
   (a) A genus of air-breathing mollusks mostly found near the sea, where the water is brackish
   (b) One of the five arched processes of the shell around the jaws of a sea urchin.

Source: Webster's Revised Unabridged Dictionary (1913)