PINNA

n.

5 definitions — Webster’s Dictionary (1828)

1.
n.

A leaflet of a pinnate leaf. See Illust. of Bipinnate leaf, under Bipinnate.

2.
n.

One of the primary divisions of a decompound leaf.

3.
n.

One of the divisions of a pinnate part or organ.

4.
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.

5.
n.

The auricle of the ear. See Ear.

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