pinna

[pin-uh]

See more synonyms for pinna on Thesaurus.com

noun, plural pin·nae

[pin-ee] /ˈpɪn i/, pin·nas.

Botany. one of the primary divisions of a pinnate leaf.
Zoology.
1. a feather, wing, or winglike part.
2. a fin or flipper.
Anatomy. auricle(def 1a).

Origin of pinna

1660–70; < Latin: feather, wing, fin

Related formspin·nal, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for pinna

brochure, pamphlet, flier, handout, handbill, plume, fringe, hand, vane, appendage, pinna, stabilizer, flipper, airfoil, circular, tract, shaft, fluff, crest, down

Examples from the Web for pinna

Historical Examples of pinna

Pinna bullata, Swainson (Fig. 168), is also a well-known species.
The Ocean World:
Louis Figuier
Gloves have been made from the byssal fibers of Pinna mixed with silk.
The Sea-beach at Ebb-tide
Augusta Foote Arnold
They are found in an oyster which is something like the pinna, only less.
The Deipnosophists, or Banquet of the Learned of Athenus
Athenus
Pinna, a primary division with its leaflets of a bipinnate or tripinnate leaf.
The Elements of Botany
Asa Gray
It inclines the pinna outwards; it is, accordingly, an abductor of the pinna.
Artistic Anatomy of Animals
douard Cuyer

British Dictionary definitions for pinna

pinna

noun plural -nae (-niː) or -nas

any leaflet of a pinnate compound leaf
zoology a feather, wing, fin, or similarly shaped part
another name for auricle (def. 2)

Word Origin for pinna

C18: via New Latin from Latin: wing, feather, fin

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

pinna in Medicine