AskDefine | Define auricle

Dictionary Definition

auricle

Noun

1 a small conical pouch projecting from the upper anterior part of each atrium of the heart [syn: atrial auricle, auricula atrii]
2 the externally visible cartilaginous structure of the external ear [syn: pinna, ear]

User Contributed Dictionary

English

Etymology

Latin auricula, diminutive of auris "ear"

Noun

  1. An ear-shaped appendage of the left or right atrium of the heart.
  2. An atrium, the smaller of the two types of heart chamber.
  3. The outer ear or pinna.
  4. Any appendage in the shape of an earlobe

Derived terms

Translations

an ear-shaped appendage of the left or right atrium of the heart
an atrium, the smaller of the two types of heart chamber
the outer ear
any appendage in the shape of an earlobe

Extensive Definition

Auricle has the following meanings:
  • the external portion of the ear, the pinna
  • a small conical pouch that projects from each atrium of the heart
  • a name for the left or right atria of the heart
  • a name given to ear-like outgrowths at the junction of the leaf blade and the leaf sheath in some grasses.

See also

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