pinnula

[pin-yuh-luh]

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noun, plural pin·nu·lae

[pin-yuh-lee] /ˈpɪn yəˌli/.

a pinnule.
a barb of a feather.

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Origin of pinnula

1740–50; < Latin, diminutive of pinna pinna; see -ule

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018