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Pinna   Listen
noun
Pinna  n.  (pl. pinnae, E. pinnas)  
1.
(Bot.)
(a)
A leaflet of a pinnate leaf.
(b)
One of the primary divisions of a decompound leaf.
2.
(Zool.) One of the divisions of a pinnate part or organ.
3.
(Zool.) 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.
4.
(Anat.) The auricle of the ear. See Ear.






Collaborative International Dictionary of English 0.48








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"Pinna" Quotes from Famous Books



... The external ear consists of an expanded portion known as the pinna or auricle, and of a passage, the auditory canal or meatus, leading inwards from it. The surface of the auricle is convoluted to collect and transmit the vibrations of air by which sound is produced the auditory ...
— A Practical Physiology • Albert F. Blaisdell

... fastened to their places on their deep-sea floors by flowing silky byssi,—cables of many strands,—of which beautiful pieces of dress, such as gloves and hose, have been manufactured. An old French naturalist, the Abbe Le Pluche, tells us that "the Pinna with its fleshy tongue" (foot),—a rude inefficient looking implement for work so nice,—"spins such threads as are more valuable than silk itself, and with which the most beautiful stuffs that ever were seen have been made by Sicilian weavers." Gloves made of the byssus of recent ...
— The Cruise of the Betsey • Hugh Miller

... filaments of any of the bivalved molluscs which adhere to rocks, as the Pinna, Mytilus, &c. The silken byssus of the great pinna, or wing-shell, is woven into dresses. In the Chama gigas it will sustain 1000 lbs. Also, the woolly substance found in ...
— The Sailor's Word-Book • William Henry Smyth



Words linked to "Pinna" :   ear, earlobe, cartilaginous structure, ear lobe, auricle, external ear



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