pinna

pin·na  (pn)

n. pl. pin·nae (pn) or pin·nas

1. Botany A leaflet or primary division of a pinnately compound leaf.

2. Zoology A feather, wing, fin, or similar appendage.

3. Anatomy See auricle.

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[Latin, feather; see pet- in Indo-European roots.]

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pinnal adj.

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pinna [ˈpɪnə]

n pl -nae [-niː], -nas

1. (Life Sciences & Allied Applications / Botany) any leaflet of a pinnate compound leaf

2. (Life Sciences & Allied Applications / Zoology) Zoology a feather, wing, fin, or similarly shaped part

3. (Life Sciences & Allied Applications / Anatomy) another name for auricle [2]

[via New Latin from Latin: wing, feather, fin]

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pinna  (pn)

Plural pinnae (pn) or pinnas

A leaflet or primary division of a pinnately compound leaf, especially of a fern frond.

Thesaurus

Noun	1.	pinna - division of a usually pinnately divided leaf pinnule leaflet - part of a compound leaf
	2.	pinna - the externally visible cartilaginous structure of the external ear auricle, ear ear lobe, earlobe - the fleshy pendulous part of the external human ear external ear, outer ear - the part of the ear visible externally tragus - a small cartilaginous flap in front of the external opening of the ear cauliflower ear - an auricle deformed by injury; common among boxers cartilaginous structure - body structure given shape by cartilage