noun. Systemic lupus erythematosus.

noun. Any of various chronic skin conditions characterized by ulcerative lesions that spread over the body. No longer in scientific use.

noun. The specific name of the grey wolf, Canis lupus.

noun. A debilitating autoimmune disease which attacks the whole body, causing skin sores, pains throughout the body, lack of breath, and kidney and heart problems.

"The term lupus refers to three different autoimmune diseases: discoid, SLE, and drug-induced lupus."