Definition of Immunoglobulin A
Immunoglobulin A: A major class of immunoglobulins found in serum and external body secretions such as saliva, tears, and sweat as well as in the gastrointestinal, respiratory, and genitourinary tracts. Abbreviated IgA.
Source: MedTerms™ Medical Dictionaryhttp://www.medterms.com/script/main/art.asp?articlekey=21066
Last Editorial Review: 8/4/2002 12:19:49 PM
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