immunoglobulin

[im-yuh-noh-glob-yuh-lin, ih-myoo-]

im·mu·no·glob·u·lin

[im-yuh-noh-glob-yuh-lin, ih-myoo-]
noun
1.
any of several classes of structurally related proteins that function as antibodies or receptors and are found in plasma and other body fluids and in the membrane of certain cells. Compare IgA, IgD, IgE, IgG, and IgM.
2.
the fraction of the blood serum containing antibodies.
3.
an antibody. Abbreviation: Ig

Origin:
1955–60; immuno- + globulin
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Immunoglobulin has a plethora of syllables.
So is antidisestablishmentarianism. Does it mean:
opposition to the withdrawal of state support or recognition from an established church, esp. the Anglican Church in 19th-century England.
an obscure term ostensibly referring to a lung disease caused by silica dust, sometimes cited as one of the longest words in the English language.
Collins
World English Dictionary
immunoglobulin (ˌɪmjʊnəʊˈɡlɒbjʊlɪn)
 
n
any of five classes of proteins, all of which show antibody activity. The most abundant ones are immunoglobulin G (IgG) and immunoglobulin A (IgA)

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Medical Dictionary

immunoglobulin im·mu·no·glob·u·lin (ĭm'yə-nō-glŏb'yə-lĭn, ĭ-my&oomacr;'-)
n.
Abbr. Ig
Any of a group of large glycoproteins secreted by plasma cells in vertebrates that function as antibodies in the immune response by binding the specific antigens.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
immunoglobulin   (ĭm'yə-nō-glŏb'yə-lĭn, ĭ-my'-)  Pronunciation Key 
See antibody.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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