
A macroglobulin is a plasma globulin of high molecular weight. Elevated levels of macroglobulins (macroglobulinemia) may cause manifestations of excess blood viscosity (as is the case for IgM antibodies in Waldenström macroglobulinemia) and/or precipitate within blood vessels when temperature drops (as in cryoglobulinaemia). Other macroglobulins ...
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http://en.wikipedia.org/wiki/Macroglobulin

<haematology, immunology> Globulin such as IgM that has a high molecular weight 400 kD in the case of IgM, 725 kD in the case of _ 2 macroglobulin. ... (18 Nov 1997) ...
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(mak″ro-glob´u-lin) a protein (globulin) of high molecular weight, in the range of 1,000,000; observed in the blood in a number of diseases.
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http://www.encyclo.co.uk/local/21001

Globulin such as IgM that has a high molecular weight: 400 kD in the case of IgM, 725 kD in the case of alpha-2-macroglobulin.
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No exact match found.