PINNA • FREE TRANSLATOR.ORG • Definition of Pinna

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noun

Pinna n. (pl. pinnae, E. pinnas)

(Bot.)

(a)

A leaflet of a pinnate leaf.

(b)

One of the primary divisions of a decompound leaf.

(Zool.) One of the divisions of a pinnate part or organ.

(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.

(Anat.) The auricle of the ear. See Ear.

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Etymology of 'Pinna'

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

... esquamosae. Pinna dorsi anique radiis tribus, spinosis, ceteris articulatis. Pinnae ventrales sub pectorales offixae, propter tenuitatem ventris ...

— Discoveries in Australia, Volume 1. • J Lort Stokes

... persecuted for their religion. Both their numbers and their station made it dangerous to treat them as enemies; and the emperor ordered all persecution to be stopped. The imperial rescript for that purpose was even addressed to "Dionysius, Pinna, Demetrius, and the other bishops;" it grants them full indulgence in the exercise of their religion, and by its very address almost acknowledges their rank in the state. By this edict of Gallienus the Christians were put on a better footing than at ...

— History Of Egypt From 330 B.C. To The Present Time, Volume 11 (of 12) • S. Rappoport

... 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

... matter: so are the cells throughout, to a greater or less extent. They are to be seen in all stages of development on the pinnae of a very young frond, those near its base having perhaps effected their purpose, while those at the apex of the pinna, or the prolonging part of pinnula, may be formed of only one cell. It is curious that the terminal cell does not become spherical for some time: in its earlier stages it ...

— Journals of Travels in Assam, Burma, Bhootan, Afghanistan and The - Neighbouring Countries • William Griffith