Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Botany A leaflet or primary division of a pinnately compound leaf.
- noun Zoology A feather, wing, fin, or similar appendage.
from The Century Dictionary.
- noun In anat. and zoöl.:
- noun A feather. See
penna . - noun A bird's wing. See
pinion . - noun A fish's fin: the usual technical name.
- noun Some wing-like or fin-like part or organ, as the flipper of a seal or cetacean.
- noun The outer ear, which projects from the head; the auricle, or pavilion of the ear. See cut under
ear . - noun The nostril, or wing of the nose.
- noun One of the smaller branches of some polyps, as plumularians.
- noun In entomology, a small oblique ridge forming one of the lines of a pinnate surface. See
pinnate . - noun In botany, one of the primary divisions of a pinnate leaf: applied most commonly to ferns.
- noun the alæ nasi; the nostrils.
- noun A genus of bivalves, typical of the family Pinnidæ.
- noun [l. c] A bivalve mollusk of the genus Pinna.
from the GNU version of the Collaborative International Dictionary of English.
- noun A leaflet of a pinnate leaf. See
Illust. of Bipinnate leaf, underbipinnate . - noun One of the primary divisions of a decompound leaf.
- noun (Zoöl.) One of the divisions of a pinnate part or organ.
- noun (Zoöl.) Any species of Pinna, a genus of large bivalve mollusks found in all warm seas. The byssus consists of a large number of long, silky fibers, which have been used in manufacturing woven fabrics, as a curiosity.
- noun (Anat.) The auricle of the ear. See
Ear .
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun anatomy The visible part of the
ear that resides outside of thehead , theauricle . - noun botany A
leaflet or primary segment of apinnate compound leaf. - noun zoology A
feather ,wing ,fin , or other similarappendage .
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun the externally visible cartilaginous structure of the external ear
- noun division of a usually pinnately divided leaf
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
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Examples
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“And after all, didn’t somebody just make up the word pinna, too?”
Frindle Andrew Clements 1996
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“And after all, didn’t somebody just make up the word pinna, too?”
Frindle Andrew Clements 1996
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In the pinna also is found the so-called pinna-guard.
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The external ear consists of an expanded portion known as the pinna or _auricle_, and of a passage, the auditory canal or _meatus_, leading inwards from it.
A Practical Physiology Albert F. Blaisdell
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Normally, the outer ear, known as the pinna, collects sound waves and directs them into the ear canal, which carries the sound waves to the eardrum.
The New Yorker 2009
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"The pinna is a variety of shell-fish not unlike the mussel; it fastens itself to the rocks and from between its shells gives out threads something like those of the spider or silkworm.
The Story of Silk Sara Ware Bassett 1920
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By contrast, the Atomic Floyd HiDefjaxes are shaped so they nestle snugly into your ears, and stay there: they've got a curve in the shape of the earpieces that wedges them in your pinna.
Review: Blackbox i10 noise-cancelling headphones, Atomic Floyd MiniDart headphones + mic Charles Arthur 2010
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The external ear is also called the auricula or pinna.
The Anatomy of the Ear James Gurney 2009
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The external ear is also called the auricula or pinna.
Archive 2009-06-01 James Gurney 2009
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With a graceful gesture she swept the tresses framing her right cheek behind a delicate ear, revealing that the pinna contained two openings to the auditory canal, one in the center, and a smaller one near the upper edge.
Star Trek: Voyager®: Full Circle Kirsten Beyer 2009
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