Definition

1. Noun:
   • A disorder of the immune system: An autoimmune disease is any of a large group of diseases characterized by abnormal functioning of the immune system. In these conditions, the immune system mistakenly attacks and damages the body's own healthy tissues, cells, and organs as if they were foreign invaders like bacteria or viruses.

Usage

• The term "autoimmune disease" is used as a countable noun to refer to a specific medical condition or to the general category of such disorders.
• It is commonly used in medical, scientific, and general health contexts to describe conditions where the body's immune response is directed against itself.

Examples

• Noun:
  • Rheumatoid arthritis is a common autoimmune disease that affects the joints.
  • Researchers are studying the genetic factors that may contribute to the development of an autoimmune disease.
  • The patient was diagnosed with an autoimmune disease that targets the skin.

Advanced Usage

• "Autoimmune disorder": Often used interchangeably with "autoimmune disease" to describe the same class of conditions.
  • Lupus is a serious autoimmune disorder.
• "Autoimmune condition": Another common synonym, emphasizing the ongoing state of health.
  • Managing an autoimmune condition often requires lifelong treatment.

Variants and Related Words

• Autoimmunity (n): The state or condition of having an immune response against the body's own tissues, which is the underlying mechanism of autoimmune diseases.
  • The study focused on the causes of autoimmunity.
• Autoimmune (adj): Describing something related to or caused by autoimmunity.
  • She has an autoimmune response that causes inflammation.

Synonyms

• Autoimmune disorder
• Autoimmune condition
• Autoimmunopathy (a less common medical term)

Notes on Meaning

• The core concept is self-attack by the immune system. While symptoms and affected organs vary widely between different autoimmune diseases (e.g., Type 1 diabetes, multiple sclerosis, celiac disease), they all share this fundamental characteristic of the immune system malfunctioning and targeting the self.

Noun

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