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ampulla

ampulla
1. An enlargement at one end of each of the semicircular canals of the inner ear. Each ampulla contains a group of receptors – sensory hair cells – embedded in a gelatinous cap (cupula), which detects movement in one particular dimension, corresponding to the plane of the canal. Movement of the head causes the cupula (and the hairs within it) to bend in a direction opposite to that of the head movement (see illustration); this stimulates nerve impulses in the receptors, which are interpreted by the brain as movement in a particular dimension.

2. Any small vesicle or saclike process.

3. ampulla of Lorenzini See electroreceptor.

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"ampulla." A Dictionary of Biology. . Encyclopedia.com. 24 May. 2017 <http://www.encyclopedia.com>.

"ampulla." A Dictionary of Biology. . Encyclopedia.com. (May 24, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/ampulla-0

"ampulla." A Dictionary of Biology. . Retrieved May 24, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/ampulla-0

ampulla

ampulla a flask for sacred uses such as holding the oil for anointing the sovereign at a coronation. Recorded in this sense from late Middle English, the word is Latin, originally denoting a roughly spherical Roman flask with two handles, and is a diminutive of amphora.

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"ampulla." The Oxford Dictionary of Phrase and Fable. . Encyclopedia.com. 24 May. 2017 <http://www.encyclopedia.com>.

"ampulla." The Oxford Dictionary of Phrase and Fable. . Encyclopedia.com. (May 24, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/ampulla

"ampulla." The Oxford Dictionary of Phrase and Fable. . Retrieved May 24, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/ampulla

ampulla

ampulla (am-puul-ă) n. (pl. ampullae) an enlarged or dilated ending of a tube or canal. a. of Vater the dilated part of the common bile duct where it is joined by the pancreatic duct.[ A. Vater (1684–1751), German anatomist]

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"ampulla." A Dictionary of Nursing. . Encyclopedia.com. 24 May. 2017 <http://www.encyclopedia.com>.

"ampulla." A Dictionary of Nursing. . Encyclopedia.com. (May 24, 2017). http://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/ampulla

"ampulla." A Dictionary of Nursing. . Retrieved May 24, 2017 from Encyclopedia.com: http://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/ampulla

ampulla

ampulla An inflatable sac at the end of each tube-foot in the echinoids (Echinoidea). It controls water pressure in the tube-foot when the muscles in its walls are contracted.

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"ampulla." A Dictionary of Earth Sciences. . Encyclopedia.com. 24 May. 2017 <http://www.encyclopedia.com>.

"ampulla." A Dictionary of Earth Sciences. . Encyclopedia.com. (May 24, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/ampulla

"ampulla." A Dictionary of Earth Sciences. . Retrieved May 24, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/ampulla

ampulla

ampulla vessel for holy oil, etc. OE. — L., dim. of ampora, var. of AMPHORA; for Eng. ampoule, †ampul(le) cf. also (O)F. ampoule.

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"ampulla." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. 24 May. 2017 <http://www.encyclopedia.com>.

"ampulla." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. (May 24, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/ampulla-1

"ampulla." The Concise Oxford Dictionary of English Etymology. . Retrieved May 24, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/ampulla-1

ampulla

ampullaampulla, bulla, fuller, Müller, pula, puller •titular • Weissmuller • wirepuller •incunabula, tabular •preambular • glandular • coagula •angular, quadrangular, rectangular, triangular •Dracula, facula, oracular, spectacular, vernacular •cardiovascular, vascular •annular, granular •scapula • capsular • spatula •tarantula • nebula • scheduler •calendula •irregular, regular •Benbecula, molecular, secular, specular •cellular • fibula • Caligula • singular •auricular, curricula, curricular, diverticula, funicular, lenticular, navicular, particular, perpendicular, testicular, vehicular, vermicular •primula •insular, peninsula •fistula, Vistula •globular •modular, nodular •binocular, jocular, ocular •oscular •copula, popular •consular • formula • tubular • uvula •jugular •avuncular, carbuncular •crepuscular, majuscular, minuscular, muscular •pustular •circular, semicircular, tubercular •Ursula

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"ampulla." Oxford Dictionary of Rhymes. . Encyclopedia.com. 24 May. 2017 <http://www.encyclopedia.com>.

"ampulla." Oxford Dictionary of Rhymes. . Encyclopedia.com. (May 24, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/ampulla-0

"ampulla." Oxford Dictionary of Rhymes. . Retrieved May 24, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/ampulla-0