Hypertext Webster Gateway: "concha"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Concha \Con"cha\, n. [LL. (in sense 1), fr. ? concha. See
{Conch}.]
1. (Arch.) The plain semidome of an apse; sometimes used for
the entire apse.
2. (Anat.) The external ear; esp. the largest and deepest
concavity of the external ear, surrounding the entrance to
the auditory canal.
From WordNet (r) 1.7 (wn)
concha
n : (anatomy) a structure that resembles a shell in shape
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