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.
teratoma. n, pl-mata (-mÉtÉ) or-mas. 1. (Pathology) a tumour or group of tumours composed of tissue foreign to the site of growth. (ËtÉr ÉËtoÊ mÉ). n., pl.