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
Derived Forms
Inflected Forms
Nouns
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.
In recent decades, however, marine pollution and environmental decline have pushed Pinna nobilis toward extinction.
From Science Daily • Jun. 12, 2026
Pinna, who is based in Paris, led the skater’s defense at the appeal hearings in September and November.
From Seattle Times • Jan. 29, 2024
“Other viruses have also been shown to do this,” said Fábio de Rezende Pinna, an otolaryngologist at the University of São Paulo.
From Washington Post • Sep. 29, 2020
“Patrick risks the same fate as Giulio — we don’t want him to die,” Paola Pinna, a high school teacher, said at a candlelight vigil on Thursday in front of the Pantheon in Rome.
From New York Times • Feb. 21, 2020
My friend Pinna introduced me to his father.
From Jewish Children by Berman, Hannah
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.
