immunoglobulin

[im-yuh-noh-glob-yuh-lin, ih-myoo-] /ˌɪm yə noʊˈglɒb yə lɪn, ɪˌmyu-/

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, and IgM.

the fraction of the blood serum containing antibodies.

an antibody.

Abbreviation: Ig.

Origin of immunoglobulin

1955-60; immuno- + globulin

Examples from the web for immunoglobulin

He has tracked the children's growth and measured their immunoglobulin levels to see if their immune systems are healthy.
Nephelometry determines the total amount of each immunoglobulin but cannot distinguish specific antibodies.

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)

immunoglobulin in Medicine

immunoglobulin im·mu·no·glob·u·lin (ĭm'yə-nō-glŏb'yə-lĭn, ĭ-myōō'-)
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.

immunoglobulin in Science

immunoglobulin

(ĭm'yə-nō-glŏb'yə-lĭn, ĭ-my'-)
See antibody.