pinnule
[ pin-yool ]
/ ˈpɪn yul /
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noun
Zoology.
- a part or organ resembling a barb of a feather, a fin, or the like.
- a finlet.
Botany. a secondary pinna, one of the pinnately disposed divisions of a bipinnate leaf.
a metal plate with a small hole in it, used as a sight in a quadrant.
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Origin of pinnule
1585–95; <Latin pinnulapinnula
OTHER WORDS FROM pinnule
pin·nu·lar [pin-yuh-ler], /ˈpɪn yə lər/, adjectiveWords nearby pinnule
pinner, pinnigrade, pinniped, pinnula, pinnulate, pinnule, pinny, pin oak, Pinocchio, Pinocchio, The Adventures of, Pinochet
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for pinnule
British Dictionary definitions for pinnule
pinnule
pinnula (ˈpɪnjʊlə)
/ (ˈpɪnjuːl) /
noun plural pinnules or pinnulae (ˈpɪnjʊˌliː)
any of the lobes of a leaflet of a pinnate compound leaf, which is itself pinnately divided
zoology any feather-like part, such as any of the arms of a sea lily
Derived forms of pinnule
pinnular, adjectiveWord Origin for pinnule
C16: from Latin pinnula, diminutive of pinna feather
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Scientific definitions for pinnule
pinnule
[ pĭn′yōōl ]
Any of the smaller leaflets into which each leaflet of a bipinnately compound leaf is subdivided. The leaves of many ferns are divided into pinnules.
The American Heritage® Science Dictionary
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