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agglutination
agglutination The clumping together by antibodies of microscopic foreign particles, such as red blood cells or bacteria, so that they form a visible pellet-like precipitate. Agglutination is a specific reaction, i.e. a particular antigen will only clump in the presence of its specific antibody; it therefore provides a means of identifying unknown bacteria and determining blood group. When blood of incompatible blood groups (e.g. group A and group B – see ABO system) is mixed together agglutination of the red cells occurs (haemagglutination). This is due to the reaction between antibodies in the plasma (agglutinins) and agglutinogens (antigens) on the surface of the red cells.
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"agglutination." A Dictionary of Biology. 2004. Encyclopedia.com. 30 May. 2012 <http://www.encyclopedia.com>. "agglutination." A Dictionary of Biology. 2004. Encyclopedia.com. (May 30, 2012). http://www.encyclopedia.com/doc/1O6-agglutination.html "agglutination." A Dictionary of Biology. 2004. Retrieved May 30, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O6-agglutination.html |
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agglutinate
ag·glu·ti·nate / əˈgloōtnˌāt/ • v. firmly stick or be stuck together to form a mass. ∎ Biol. (with reference to bacteria or red blood cells) clump together: [tr.] these strains agglutinate human red cells| [intr.] cell fragments agglutinate and form intricate meshes. ∎ [tr.] Linguistics combine (simple words or parts of words) without change of form to express compound ideas. DERIVATIVES: ag·glu·ti·na·tion / əˌgloōtnˈāshən/ n. |
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"agglutinate." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 30 May. 2012 <http://www.encyclopedia.com>. "agglutinate." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (May 30, 2012). http://www.encyclopedia.com/doc/1O999-agglutinate.html "agglutinate." The Oxford Pocket Dictionary of Current English. 2009. Retrieved May 30, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-agglutinate.html |
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agglutination
agglutination (clumping) (ă-gloo-tin-ay-shŏn) n. the sticking together of such microscopic antigenic particles as red blood cells or bacteria so that they form visible clumps.
—agglutinative adj. |
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"agglutination." A Dictionary of Nursing. 2008. Encyclopedia.com. 30 May. 2012 <http://www.encyclopedia.com>. "agglutination." A Dictionary of Nursing. 2008. Encyclopedia.com. (May 30, 2012). http://www.encyclopedia.com/doc/1O62-agglutination.html "agglutination." A Dictionary of Nursing. 2008. Retrieved May 30, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O62-agglutination.html |
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agglutination
agglutination The clumping of cells that is caused by the reaction between antigens on their surfaces and antibodies in their external environment. See RHESUS FACTOR.
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MICHAEL ALLABY. "agglutination." A Dictionary of Zoology. 1999. Encyclopedia.com. 30 May. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "agglutination." A Dictionary of Zoology. 1999. Encyclopedia.com. (May 30, 2012). http://www.encyclopedia.com/doc/1O8-agglutination.html MICHAEL ALLABY. "agglutination." A Dictionary of Zoology. 1999. Retrieved May 30, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-agglutination.html |
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agglutination
agglutination Clumping of bacteria or erythrocytes by antibodies that react with antigens on the cell surface.
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"agglutination." World Encyclopedia. 2005. Encyclopedia.com. 30 May. 2012 <http://www.encyclopedia.com>. "agglutination." World Encyclopedia. 2005. Encyclopedia.com. (May 30, 2012). http://www.encyclopedia.com/doc/1O142-agglutination.html "agglutination." World Encyclopedia. 2005. Retrieved May 30, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O142-agglutination.html |
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agglutination
agglutination in biochemistry: see immunity . |
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"agglutination." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 30 May. 2012 <http://www.encyclopedia.com>. "agglutination." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (May 30, 2012). http://www.encyclopedia.com/doc/1E1-X-agglutin-im.html "agglutination." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved May 30, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-X-agglutin-im.html |
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