Concha

==English==
===Etymology===
From 
===Noun===
# Any shell-shaped structure
# The deepest indentation of the cartilage of the human ear, attaching to the mastoid bone
# An apse
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==Interlingua==
===Noun===
# Conch shell.
# External ear.
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==Spanish==
===Noun===
# Seashell.
# Shell (mollusk).
# cunt.
====Related terms====
*conchudo
*conchasumadre
*conchatumadre
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