Lupus (noun)

1. A disease in which the body's immune system mistakenly attacks healthy tissue.
2. A constellation in the southern hemisphere near Centaurus and Scorpius.

Origin:

From latin lupus, which means "wolf".

Examples:

1. He was diagnosed with lupus and had to take medication to control the symptoms.
2. The constellation Lupus is often depicted as a wolf in ancient star charts.
3. The lupus patient had to avoid sunlight as it can cause flare ups.
4. Lupus is a chronic autoimmune disease, meaning the symptoms come and go.
5. The Lupus Foundation of America estimates that at least 1.5 million Americans have some form of lupus.