immunoglobulin A

noun

An antibody that plays a crucial role in the immune function of mucous membranes.

Similar
IgA
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Meanings

nounimmunoglobulin A (uncountable)

alternative IgA

  1. uncountableimmunologyAn antibody that plays a crucial role in the immune function of mucous membranes.

    Synonyms: IgA

Synonyms & antonyms

nounAn antibody that plays a crucial role in the immune function of mucous membranes.

Similar
IgA

More synonyms by meaning

nounone of the most common of the five major classes of immunoglobulins; the chief antibody in the membranes of the gastrointestinal and respiratory tracts

Similar
IgA
Broader
immunoglobulinIgimmune serum globulin
Also see
iga

Synonym sets from Open English WordNet, CC BY 4.0.

Cite this entry
APA

immunoglobulin A. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/immunoglobulin%20A

MLA

“immunoglobulin A.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/immunoglobulin%20A. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “immunoglobulin A,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/immunoglobulin%20A.

Source: immunoglobulin A on Wiktionary, CC BY-SA 4.0.