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

Words nearby immunoglobulin

immunofluorescence, immunofluorescence assay, immunogen, immunogenetics, immunogenic, immunoglobulin, immunohematology, immunohistochemistry, immunohistology, immunol., immunological tolerance

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use immunoglobulin in a sentence

Intravenous immunoglobulin infusions—which reduce the overall load of abnormal cells and inflammatory agents—and steroids, which also reduce inflammation, can be effective as well.
COVID-19 May Be Linked to Spontaneous Psychosis. Researchers Are Trying to Figure Out Why|Jeffrey Kluger|March 4, 2022|Time
One reason for the pause was to alert health officials to use similar non-heparin drugs and intravenous immunoglobulin.
CDC advisers reconvene to weigh next steps on Johnson & Johnson vaccine after rare, serious blood clots|Lena H. Sun, Carolyn Y. Johnson|April 23, 2021|Washington Post

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-glŏb′yə-lĭn, ĭ-myōō′- ]

See antibody.