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Meaning Of Pinna
n.
A leaflet of a pinnate leaf. See Illust. of Bipinnate leaf,
under Bipinnate.
n.
One of the primary divisions of a decompound leaf.
n.
One of the divisions of a pinnate part or organ.
n.
Any species of Pinna, a genus of large bivalve mollusks
found in all warm seas. The byssus consists of a large number of long,
silky fibers, which have been used in manufacturing woven fabrics, as a
curiosity.