auricle

An auricle is a part of the human body — it means both the visible part of an ear and an upper cavity of the heart.

You'll most likely come across the word auricle in an anatomy textbook, since it's a scientific term for a body part. It's more common to call an ear pinna, or the external part of the ear, an auricle, although it's occasionally also used to refer to an atrium of the heart. The word comes from the Latin auricula, "ear," with the heart meaning stemming from the ear-like shape of the heart's upper chambers.

Primary Meanings of auricle

1.
n
a small conical pouch projecting from the upper anterior part of each atrium of the heart
2.
n
the externally visible cartilaginous structure of the external ear
Full Definitions of auricle
1

n a small conical pouch projecting from the upper anterior part of each atrium of the heart

Synonyms:
atrial auricle, auricula atrii
Type of:
pocket, pouch
(anatomy) saclike structure in any of various animals (as a marsupial or gopher or pelican)
2

n the externally visible cartilaginous structure of the external ear

Synonyms:
ear, pinna
Types:
cauliflower ear
an auricle deformed by injury; common among boxers
Type of:
cartilaginous structure
body structure given shape by cartilage

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