n. [L. auricula, little ear]
1. Any ear-shaped structure or small lobe-like appendage.
2. An atrium or chamber of the heart.
3. (ARTHROPODA: Insecta)
a. In Hymenoptera, a flat plate forming a part of the pollen basket or corbicula of honeybees. b. In Anisoptera, ventrolateral outgrowths of tergum two; oreillets.
In Lobata, the four ciliated, delicate lobes projecting from the equatorial level.
a. Paired chambers that receive blood from each side of the body. b. In Bivalvia, an earlike protuberance on the dorsal part of the shell.
6. (PLATYHELMINTHES: Turbellaria)
A blunt lateral chemical receptor.
Paired ciliated lateral coronal projections that aid in swimming. auricular adj..

Online Dictionary of Invertebrate Zoology. . 2005.


Look at other dictionaries:

  • 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 ** Right auricle ** Left auricle * a name for the left or right atria of the heart * a name given to ear… …   Wikipedia

  • Auricle — Au ri*cle, n. [L. auricula, dim. of auris ear. See {Ear}.] 1. (Anat.) (a) The external ear, or that part of the ear which is prominent from the head. (b) The chamber, or one of the two chambers, of the heart, by which the blood is received and… …   The Collaborative International Dictionary of English

  • auricle — part of the ear, 1650s, from L. auricula ear, dim. of auris (see EAR (Cf. ear) (1)). As a chamber of the heart, early 15c., from Latin, so called from a perceived similarity in shape to an animal s ear …   Etymology dictionary

  • auricle — ► NOUN 1) the external part of the ear. 2) an atrium of the heart. ORIGIN Latin auricula little ear …   English terms dictionary

  • auricle — [ô′ri kəl] n. [ME < L auricula, dim. of auris, EAR1] 1. Anat. a) the external part of the ear; pinna b) Obs. an atrium of the heart 2. Biol. an earlike part or organ …   English World dictionary

  • auricle — auricled, adj. /awr i keuhl/, n. 1. Anat. a. the projecting outer portion of the ear; pinna. b. Also called auricular appendage. an ear shaped appendage projecting from each atrium of the heart. c. (loosely) the atrium. 2. Bot., Zool. a part like …   Universalium

  • auricle — noun Etymology: Latin auricula, from diminutive of auris ear more at ear Date: 15th century 1. a. an atrium of a heart b. pinna 1 c. an anterior ear shaped pouch in each atrium of the human heart 2. an angular or ear shaped lobe …   New Collegiate Dictionary

  • auricle — atrium …   Dictionary of ichthyology

  • auricle — noun a) The outer ear or pinna. b) An ear shaped appendage of the left or right atrium of the heart. Syn: pinna, pavilion See Also: auricular …   Wiktionary

  • Auricle — The ear (actually, the pinna which is the principal projecting part of the ear) or something that is ear shaped like the upper chamber (atrium) of the heart. * * * 1. The projecting shell like structure on the side of the head, constituting, with …   Medical dictionary

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