Pinna Definition

pĭnə
pinnae, pinnas
noun
pinnae, pinnas
The external ear; auricle.
Webster's New World
A primary division of a pinnately compound leaf, esp. of a fern leaf.
Webster's New World
A feather, wing, fin, or similar structure.
Webster's New World
Synonyms:

Other Word Forms of Pinna

Noun

Singular:
pinna
Plural:
pinnae, pinnas

Origin of Pinna

  • Latin feather pet- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

Pinna Sentence Examples

  • Such eyes on the mantle-edge are found in Pecten, Spondylus, Lima, Pinna, Pectunculus, Modiola, Cardium, Tellina, Mactra, Venus, Solen, Pholas and Galeomma.

  • The Cyas type of frond, except as regards the presence of a midrib in each pinna, characterizes the cycads generally, except Bowenia and Stangeria.

  • The development of the sporocarp shows that it corresponds to a pinna, although when mature it may appear to occupy a ventral position in relation to the vegetative portion of the leaf.

  • Its nearest allies are Pinna among living forms, Eligmus among fossils.

  • B, Section of the rachis bearing a single pinna.

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Words Starting With

PPIPIN

Words Ending With

ANANNA

Unscrambles

pinna

Words Starting With P and Ending With A

Starts With P & Ends With AStarts With PI & Ends With AStarts With P & Ends With NA

Word Length

5 Letter Words5 Letter Words Starting With P5 Letter Words Ending With A