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immunoglobulin

[ im-yuh-noh-glob-yuh-lin, ih-myoo- ]
/ ˌɪm yə noʊˈglɒb yə lɪn, ɪˌmyu- /
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noun
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, IgM.
the fraction of the blood serum containing antibodies.
an antibody. Abbreviation: Ig
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Origin of immunoglobulin

First recorded in 1955–60; immuno- + globulin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use immunoglobulin in a sentence

British Dictionary definitions for immunoglobulin

immunoglobulin
/ (ˌɪmjʊnəʊˈɡlɒbjʊlɪn) /

noun
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 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for immunoglobulin

immunoglobulin
[ ĭm′yə-nō-glŏbyə-lĭn, ĭ-myōō′- ]

See antibody.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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