pinna
Americannoun
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Botany. one of the primary divisions of a pinnate leaf.
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Zoology.
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a feather, wing, or winglike part.
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a fin or flipper.
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Anatomy. auricle.
noun
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any leaflet of a pinnate compound leaf
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zoology a feather, wing, fin, or similarly shaped part
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another name for auricle
Other Word Forms
Etymology
Origin of pinna
1660–70; < Latin: feather, wing, fin
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The researchers call transients Orcinus rectipinnus, noting that, in Latin, “recti means right or upright, and pinna means fin, feather, or wing, most likely referring to the tall erect dorsal fin of males.”
From Los Angeles Times • Mar. 29, 2024
Without the malleus and incus, the vibrations of the pinna would not be able to reach the stapes and then be sent to the cochlea.
From Textbooks • Jun. 9, 2022
The leaflet, or pinna, of the glade fern is quite coarse and contrasts strikingly with its wispier neighbor.
From Washington Post • Jul. 8, 2015
The visible part of the exterior ear is called the pinna.
From Textbooks • Jan. 1, 2015
“And after all, didn’t somebody just make up the word pinna, too?”
From "Frindle" by Andrew Clements
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
