noun, plural pin·nae [pin-ee] /ˈpɪn i/, pin·nas.
- a feather, wing, or winglike part.
- a fin or flipper.
Origin of pinna
Examples from the Web for pinna
Pinna dorsalis corpore pen qualis, radiis simplicibus flexilibus.Zoological Illustrations, Volume I|William Swainson
When the pea-crab discovers a supply of food he brings it to his friend, the Pinna, to be divided equally.Digby Heathcote|W.H.G. Kingston
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
He says that Tarentine muslins, woven from the filaments of the pinna dipped in the dye of the murex, rivalled those of Cos.Needlework As Art|Marian Alford