Immunoglobulin

Alternative forms

• Ig abbreviation

Origin

From - + globulin.

Full definition of immunoglobulin

Noun

1. (protein, immunology) Any of the glycoproteins in blood serum that respond to invasion by foreign antigens and that protect the host by removing pathogens; an antibody.

Synonyms

• antibody

Hypernyms

• glycoprotein

Derived terms

• immunoglobulin A, IgA
• immunoglobulin D, IgD
• immunoglobulin E, IgE
• immunoglobulin G, IgG
• immunoglobulin M, IgM