This is the 3828th most frequent Catalan word.
autoimmune
Relating to a response of the immune system against the body's own tissues.
Here, 'autoimmune' is an adjective describing the type of illness, specifying that it relates to the immune system attacking the body's own tissues.
La malaltia autoimmune afecta el sistema immunitari.
The autoimmune disease affects the immune system.
In this sentence, 'autoimmune' qualifies the noun 'conditions,' indicating disorders caused by malfunctioning immune responses.
Es desconeix encara moltes causes de les condicions autoimmunes.
Many causes of autoimmune conditions are still unknown.
The usage of 'autoimmune' as 'reaction' shows how a process involving immunological disorders can occur under certain stimuli.