Alveolus

alveolus

al·ve·o·lus / alˈvēələs/ • n. (pl. -li / -ˌlī/ ) chiefly Anat. a small cavity, pit, or hollow, in particular: ∎  any of the many tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place. ∎  the bony socket for the root of a tooth. ∎  an acinus in a gland. DERIVATIVES: al·ve·o·late / -lit; -ˌlāt/ adj.

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"alveolus." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 13 Feb. 2012 <http://www.encyclopedia.com>.

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alveolus

alveolus (pl. alveoli) One of a cluster of microscopic tiny air-sacs that open out from the alveolar ducts at the far end of each bronchiole in the lungs. The alveolus is the site for the exchange of gases between the air and the bloodstream, and is covered in a network of capillary blood vessels. See also gas exchange; respiratory system

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"alveolus." World Encyclopedia. 2005. Encyclopedia.com. 13 Feb. 2012 <http://www.encyclopedia.com>.

"alveolus." World Encyclopedia. 2005. Encyclopedia.com. (February 13, 2012). http://www.encyclopedia.com/doc/1O142-alveolus.html

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alveolus

alveolus small cavity, tooth-socket, etc. XVIII. — L., dim. of alveus trough.
Hence alveolar XVIII. alway †all the time, every time. OE. alne weġ, acc. of ALL and WAY; orig. denoting extent of space or distance, but at its first appearance already transf. to extent of time. Superseded in ordinary use by always XIII.

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T. F. HOAD. "alveolus." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. 13 Feb. 2012 <http://www.encyclopedia.com>.

T. F. HOAD. "alveolus." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. (February 13, 2012). http://www.encyclopedia.com/doc/1O27-alveolus.html

T. F. HOAD. "alveolus." The Concise Oxford Dictionary of English Etymology. 1996. Retrieved February 13, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O27-alveolus.html

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alveolus

alveolus
1. The tiny air sac in the lung of mammals and reptiles at the end of each bronchiole. It is lined by a delicate moist membrane, has many blood capillaries, and is the site of exchange of respiratory gases (carbon dioxide and oxygen).

2. The socket in the jawbone in which a tooth is rooted by means of the periodontal membrane.

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"alveolus." A Dictionary of Biology. 2004. Encyclopedia.com. 13 Feb. 2012 <http://www.encyclopedia.com>.

"alveolus." A Dictionary of Biology. 2004. Encyclopedia.com. (February 13, 2012). http://www.encyclopedia.com/doc/1O6-alveolus.html

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alveolus

alveolus (al-vee-oh-lŭs) n. (pl. alveoli)
1. (in the lung) a blind-ended air sac of microscopic size.

2. the part of the upper or lower jawbone that supports the roots of the teeth (see also mandible, maxilla).

3. the sac of a racemose gland (see also acinus).

4. any other small cavity, depression, or sac.
alveolar adj.

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"alveolus." A Dictionary of Nursing. 2008. Encyclopedia.com. 13 Feb. 2012 <http://www.encyclopedia.com>.

"alveolus." A Dictionary of Nursing. 2008. Encyclopedia.com. (February 13, 2012). http://www.encyclopedia.com/doc/1O62-alveolus.html

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alveolus

alveolus
1. In the lung of an air-breathing vertebrate, a thin-walled sac surrounded by blood vessels through whose surfaces gas exchange occurs.

2. A sac forming an internal termination of a glandular duct.

3. The socket in a jawbone into which a tooth fits.

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MICHAEL ALLABY. "alveolus." A Dictionary of Zoology. 1999. Encyclopedia.com. 13 Feb. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "alveolus." A Dictionary of Zoology. 1999. Encyclopedia.com. (February 13, 2012). http://www.encyclopedia.com/doc/1O8-alveolus.html

MICHAEL ALLABY. "alveolus." A Dictionary of Zoology. 1999. Retrieved February 13, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-alveolus.html

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alveolus

alveolus : see lungs .

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"alveolus." The Columbia Encyclopedia, 6th ed.. 2008. Encyclopedia.com. 13 Feb. 2012 <http://www.encyclopedia.com>.

"alveolus." The Columbia Encyclopedia, 6th ed.. 2008. Encyclopedia.com. (February 13, 2012). http://www.encyclopedia.com/doc/1E1-X-alveolus.html

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alveolus

alveolus See BELEMNITIDA.

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AILSA ALLABY and MICHAEL ALLABY. "alveolus." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 13 Feb. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "alveolus." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (February 13, 2012). http://www.encyclopedia.com/doc/1O13-alveolus.html

AILSA ALLABY and MICHAEL ALLABY. "alveolus." A Dictionary of Earth Sciences. 1999. Retrieved February 13, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-alveolus.html

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alveolus

alveolusCallas, callous, callus, Dallas, Pallas, phallus •Nablus • manless •hapless, mapless •atlas, fatless, hatless •braless, parlous •armless • artless •jealous, zealous •endless • legless • sexless • airless •talus • bacillus • windlass • Nicklaus •obelus • strobilus •acidophilus, Theophilus •angelus • Aeschylus • perilous •scurrilous • Wenceslas • nautilus •Silas, stylus •jobless •godless, rodless •Patroclus • topless • coxless •lawless, oarless •Aeolus, alveolus, bolas, bolus, gladiolus, holus-bolus, solus, toeless •Troilus • Douglas • useless • Tibullus •garrulous • querulous • fabulous •miraculous • calculus • famulus •crapulous • patulous • nebulous •credulous, sedulous •pendulous • regulus •emulous, tremulous •bibulous • acidulous •meticulous, ridiculous •mimulus, stimulus •scrofulous • flocculus • Romulus •populace, populous •convolvulus •altocumulus, cirrocumulus, cumulus, stratocumulus, tumulus •scrupulous •furunculous, homunculus, ranunculus •Catullus • troublous •gunless, sunless •cutlass, gutless •earless • Heliogabalus •libellous (US libelous) • discobolus •scandalous • Daedalus • astragalus •Nicholas • anomalous • Sardanapalus •tantalus •marvellous (US marvelous) •frivolous • furless • surplus

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"alveolus." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 13 Feb. 2012 <http://www.encyclopedia.com>.

"alveolus." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. (February 13, 2012). http://www.encyclopedia.com/doc/1O233-alveolus.html

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