pinnula

[pin-yuh-luh]

pin·nu·la

[pin-yuh-luh]
noun, plural pin·nu·lae [-lee] .
1.
a pinnule.
2.
a barb of a feather.

Origin:
1740–50; < Latin, diminutive of pinna pinna; see -ule
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Pinnula is always a great word to know.
So is quincunx. Does it mean:
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
Collins
World English Dictionary
pinnule or pinnula (ˈpɪnjuːl, ˈpɪnjʊlə)
 
n , pl pinnules, pinnulae
1.  any of the lobes of a leaflet of a pinnate compound leaf, which is itself pinnately divided
2.  zoology any feather-like part, such as any of the arms of a sea lily
 
[C16: from Latin pinnula, diminutive of pinna feather]
 
pinnula or pinnula (ˈpɪnjuːl, ˈpɪnjʊlə, ˈpɪnjʊˌliː)
 
n
 
[C16: from Latin pinnula, diminutive of pinna feather]
 
'pinnular or pinnula
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
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