IgA Deficiency. Print. IgA deficiency is a defect in the immune system characterized by an inadequate amount of the antibody class known as immunoglobulin A (IgA). Antibodies are large proteins produced by the body to fight infections caused by invaders, such as bacteria, viruses, fungi, parasites, and other foreign agents.
Definition of ultimo. : of or occurring in the month preceding the present.
Related terms. 1  da ultimo. 2  fino all'ultimo. 3  negli ultimi tempi. 4  ultimamente. ultimare. 5  ultimativo. ultimissima.  ultimogenito.