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pinna

pin·na / ˈpinə/ • n. (pl. pin·nae / ˈpinē/ ) 1. Anat. & Zool. the external part of the ear in humans and other mammals; the auricle. 2. Bot. a primary division of a pinnate leaf, esp. of a fern. 3. Zool. any of a number of animal structures resembling fins or wings.

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"pinna." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 25 Jun. 2017 <http://www.encyclopedia.com>.

"pinna." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (June 25, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/pinna

"pinna." The Oxford Pocket Dictionary of Current English. . Retrieved June 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/pinna

pinna

pinna (auricle) The visible part of the outer ear, present in some mammals. It is made of cartilage and its function is to channel sound waves into the external auditory meatus. In some species the pinna is movable and aids in detecting the direction from which a sound originates.

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"pinna." A Dictionary of Biology. . Encyclopedia.com. 25 Jun. 2017 <http://www.encyclopedia.com>.

"pinna." A Dictionary of Biology. . Encyclopedia.com. (June 25, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pinna-1

"pinna." A Dictionary of Biology. . Retrieved June 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pinna-1

pinna

pinna (auricle) (pin-ă) n. the flap of skin and cartilage that projects from the head at the exterior opening of the external auditory meatus of the ear.

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"pinna." A Dictionary of Nursing. . Encyclopedia.com. 25 Jun. 2017 <http://www.encyclopedia.com>.

"pinna." A Dictionary of Nursing. . Encyclopedia.com. (June 25, 2017). http://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/pinna

"pinna." A Dictionary of Nursing. . Retrieved June 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/pinna

pinna

pinna Flap of skin and cartilage that comprises the visible, external part of the ear. It helps to collect sound waves and direct them into the ear canal.

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"pinna." World Encyclopedia. . Encyclopedia.com. 25 Jun. 2017 <http://www.encyclopedia.com>.

"pinna." World Encyclopedia. . Encyclopedia.com. (June 25, 2017). http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/pinna

"pinna." World Encyclopedia. . Retrieved June 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/pinna

pinna

pinna
1. In Mammalia, an extension of the external ear to form a trumpet-like structure, often mobile, supported by cartilage.

2. Fin, or fin-like limb.

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"pinna." A Dictionary of Zoology. . Encyclopedia.com. 25 Jun. 2017 <http://www.encyclopedia.com>.

"pinna." A Dictionary of Zoology. . Encyclopedia.com. (June 25, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pinna-0

"pinna." A Dictionary of Zoology. . Retrieved June 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pinna-0

pinna

pinna One of the leaflets of a pinnate leaf.

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"pinna." A Dictionary of Plant Sciences. . Encyclopedia.com. 25 Jun. 2017 <http://www.encyclopedia.com>.

"pinna." A Dictionary of Plant Sciences. . Encyclopedia.com. (June 25, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pinna

"pinna." A Dictionary of Plant Sciences. . Retrieved June 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pinna