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1. (n.) pinnule
a part or organ resembling a barb of a feather, a fin, or the like.
2. pinnule
a secondary pinna, one of the pinnately disposed divisions of a bipinnate leaf.
Etymology: (1585–95; < L pinnula, dim. of pinna feather; see -ule)
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| Definition of 'pinnule' |
Princeton's WordNet |
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1. (noun) pinna, pinnule
division of a usually pinnately divided leaf
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Webster Dictionary |
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1. (noun) pinnule
one of the small divisions of a decompound frond or leaf. See Illust. of Bipinnate leaf, under Bipinnate
2. (noun) pinnule
any one of a series of small, slender organs, or parts, when arranged in rows so as to have a plumelike appearance; as, a pinnule of a gorgonia; the pinnules of a crinoid
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Definitions of pinnule 
