Plural of conch; large spiral seashells or the concha structures found in ears.
From Latin 'concha' via Greek 'kogkhe'. Used since ancient times to refer to both shells and shell-shaped anatomical features.
Conches can grow as big as a football and were so prized by ancient civilizations that they were often buried with important people—some cultures even used conch shells as trumpets for calling across distances.
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