Wordnet 3.0
NOUN (1)
1.
any of a large group of diseases characterized by abnormal functioning of the immune system that causes your immune system to produce antibodies against your own tissues;
[syn: autoimmune disease, autoimmune disorder]
WordNet (r) 3.0 (2006):
autoimmune disease
n 1: any of a large group of diseases characterized by abnormal
functioning of the immune system that causes your immune
system to produce antibodies against your own tissues [syn:
autoimmune disease, autoimmune disorder]