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.
Like Pinna nobilis, this species produces byssus threads to anchor itself.
From Science Daily • Feb. 9, 2026
Valieva’s legal team said it is reviewing the CAS decision before deciding whether to appeal to the Swiss supreme court, lawyer Andrea Pinna said in a statement.
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
The strange T-shaped "Hammer oyster" belongs to this family, as does also the Pinna.
From Sea-Weeds, Shells and Fossils by Gray, Peter
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.
