Category:Concha

Con"cha, n. Etym: [LL. (in sense 1), fr. concha. See Conch.]

1. (Arch.)

Defn: The plain semidome of an apse; sometimes used for the entire apse.

2. (Anat.)

Defn: The external ear; esp. the largest and deepest concavity of the external ear, surrounding the entrance to the auditory canal.