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. Familiarity information: AUTOIMMUNE DISEASE used as a noun is very rare. Dictionary entry details. â¢ AUTOIMMUNE DISEASE (noun).
There is no clearly understood or universally agreed-upon cause for gender identity disorder. However, most experts agree that there may be a strong biological basis for the disorder. The sex of a human baby is determined by chromosomes.
Ref: Prenatal hormones, sexual orientation and gender. There is also a second wash of sex hormones that occurs while the brain is developing. It is thought by some researchers that crossing the wrong hormones at that time is what leads to transgender issues.