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pinnacle
pinnae
pinnate
pinnati-
pinnatifid
pinnatiped
pinnatisect
pinniped
pinnule
pinny
pinochle
pinocytosis
pinole
piñon
piñon jay
Pinot Blanc
Pinot Grigio
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pinnule

pin·nule [ pínnyool ] (plural pin·nules) or pin·nu·la [ pínnyələ ] (plural pin·nu·lae [ pínnyə l ])


noun 
Definition:
 
1. fin-shaped part: a small fin or fin-shaped part of an organ or organism

2. lobes of leaflet: a small division or lobe of a leaf that has a central axis with parts branching off it

[Late 16th century. < Latin pinnula "little feather" < pinna "feather"]

pin·nu·lar [ pínnyələr ] adjective
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