Meaning of IMMUNOGLOBULIN A

WordNet Dictionary
	Definition:		[n]  one of the most common of the five major classes of immunoglobulins; the chief antibody in the membranes of the gastrointestinal and respiratory tracts
	Synonyms:		IgA
	See Also:		Ig, immune gamma globulin, immune globulin, immune serum globulin, immunoglobulin