IgM


IgM

noun \ˌī-(ˌ)jē-ˈem\

Definition of IGM

1
:  a class of immunoglobulins of high molecular weight including the primary antibodies that are released into the blood early in the immune response to be replaced later by IgG and that are highly efficient in binding complement
2
:  an antibody of the class IgM

First Known Use of IGM

1969

IgM

noun \ˌī-ˌjē-ˈem\   (Medical Dictionary)

Medical Definition of IGM

1
: a class of immunoglobulins of high molecular weight that include the primary antibodies released into the blood early in the immune response to be replaced later by IgGs of lower molecular weight and that are highly efficient in binding complement
2
: an immunoglobulin of the class IgM

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