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Medical Term:

immunodeficiency

Pronunciation: im'yu-no-de-fish'en-se, i-myu'

Definition: A condition resulting from a defective immune mechanism; may be primary (due to a defect in the immune mechanism itself) or secondary (dependent on another disease process), specific (due to a defect in either the B-lymphocyte or the T-lymphocyte system, or both) or nonspecific (due to a defect in one or another component of the nonspecific immune mechanism: the complement, properdin, or phagocytic system).

Synonym(s): immune deficiency, immunity deficiency, immunologic deficiency

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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