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Fine Dictionary

pinna

WordNet
Interesting fact
No two human outer EARS (pinnae)-even your own- are exactly alike.Earology, as the system is called, was developed to supplement identification by fingerprints.
  1. (n) pinna
    the externally visible cartilaginous structure of the external ear
  2. (n) pinna
    division of a usually pinnately divided leaf
Webster's Revised Unabridged Dictionary
  1. Pinna
    (Bot) A leaflet of a pinnate leaf. See Illust. of Bipinnate leaf, under Bipinnate.
  2. Pinna
    (Zoöl) 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.
  3. Pinna
    (Zoöl) One of the divisions of a pinnate part or organ.
  4. Pinna
    (Bot) One of the primary divisions of a decompound leaf.
  5. Pinna
    (Anat) The auricle of the ear. See Ear.
Century Dictionary and Cyclopedia
  1. (n) pinna
    In anat. and zoöl.:
  2. (n) pinna
    A feather. See penna.
  3. (n) pinna
    A bird's wing. See pinion.
  4. (n) pinna
    A fish's fin: the usual technical name.
  5. (n) pinna
    Some wing-like or fin-like part or organ, as the flipper of a seal or cetacean.
  6. (n) pinna
    The outer ear, which projects from the head; the auricle, or pavilion of the ear. See cut under ear.
  7. (n) pinna
    The nostril, or wing of the nose.
  8. (n) pinna
    One of the smaller branches of some polyps, as plumularians.
  9. (n) pinna
    In entomology, a small oblique ridge forming one of the lines of a pinnate surface. See pinnate.
  10. (n) pinna
    In botany, one of the primary divisions of a pinnate leaf: applied most commonly to ferns. In a simply pinnate leaf it is a single leaflet, in a bipinnate leaf it consists of a partial petiole or rachis with the leaflets arranged along the sides. See cut under Osmunda.
  11. (n) pinna
    the alæ nasi; the nostrils.
  12. (n) pinna
    A genus of bivalves, typical of the family Pinnidæ. They are commonly called sea-wings, and are remarkable for the size of the byssus by which they adhere to rocks. It is notably long and delicate, is very strong, has a beautiful silky luster, and is capable of being woven into cloth, upon which a very high value is set. This manufacture was known to the ancients, and is still practised in Italy. Some species of Pinna measure about two feet long, with a byssus of the same length. See also cut under byssus.
  13. (n) pinna
    [l. c] A bivalve mollusk of the genus Pinna.
Chambers's Twentieth Century Dictionary
  1. (n) Pinna
    pin′a a single leaflet of a pinnate leaf: a wing, fin, or the like: the auricle of the ear
Etymology

Webster's Revised Unabridged Dictionary L. pinna, akin to Gr.

Chambers's Twentieth Century Dictionary L. pinna, a feather, dim. pinnula.

Usage in the news

The pinna is like a satellite dish on either side of the head. greensboro.rhinotimes.com

Improv band Pinna to play Remy's on Saturday night. islandpacket.com

Pinna of North Branch died tragically in an auto accident on Sept 1 at the age of 20. ecmpostreview.com

Kristina was born June 4, 1991 in Chisago City to Anthony and Deb Pinna . ecmpostreview.com

The folds of the outer ear--the pinna --seem gratuitous, a waste of cartilage and skin. discovermagazine.com

Ear mites, ticks (pinna, canal), or fleas (in ear area, not in canal). dogchannel.com

Usage in literature

The right pinna was entire, and the upper half of the left pinna had disappeared. "Anomalies and Curiosities of Medicine" by George M. Gould

These divisions of the pinnae are called pinnules. "The Fern Lover's Companion" by George Henry Tilton

Pinna dorsi anique radiis tribus, spinosis, ceteris articulatis. "Discoveries in Australia, Volume 1." by J Lort Stokes

Polypidom simply pinnate, about two inches high: longest pinnae about half an inch. "Narrative Of The Voyage Of H.M.S. Rattlesnake, Commanded By The Late Captain Owen Stanley, R.N., F.R.S. Etc. During The Years 1846-1850. Including Discoveries And Surveys In New Guinea, The Louisiade Archipelago, Etc. To Which Is Added The Account Of Mr. E.B. Kennedy's Expedition For The Exploration Of The Cape York Peninsula. By John Macgillivray, F.R.G.S. Naturalist To The Expedition. In Two Volumes. Volume 1." by John MacGillivray

Goold Island : pinna. "Voyage Of H.M.S. Rattlesnake, Vol. 2 (of 2)" by John MacGillivray

In several cases, each pinna appears to have scales only which become barren lobes? "Journals of Travels in Assam, Burma, Bhootan, Afghanistan and TheNeighbouring Countries" by William Griffith

It also sometimes happens that the same mass of pinna may be of different fineness in different parts. "A General History and Collection of Voyages and Travels, Volume 11" by Robert Kerr

Pinna: a narrow wing; a feather. "Explanation of Terms Used in Entomology" by John. B. Smith

After this failure another set of men tried to make silk by using the filament of the pinna. "The Story of Silk" by Sara Ware Bassett

My friend Pinna introduced me to his father. "Jewish Children" by Sholem Naumovich Rabinovich