Lupus

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A constellation of stars in the Southern Hemisphere near Centaurus and Scorpius.

Century Dictionary and Cyclopedia

1. n. A genus of Canidæ, comprising the wolves, but having no characters by which it can be distinguished from Canis. In this nomenclature the common gray wolf of North America is called Lupus occidentalis.
2. n. [lowercase] The specific designation of the common wolf, Canis lupus.
3. n. An ancient southern constellation, the Wolf, representing a beast held by the hand of the Centaur. It has two stars of the third magnitude.
4. n. [lowercase] In pathology
5. n. Lupus vulgaris, a tuberculosis of the skin, presenting clinically reddish-brown patches made up of papules, tubercles, and flat infiltrations. These patches proceed to ulceration and subsequent cicatrization. They occur mostly on the face, but may occur on mucous surfaces as well as on the skin of the extremities, or even (rarely) of the trunk. Anatomically there is tubercular tissue containing tubercle-bacilli.
6. n. Lupus erythematosus, a chronic dermatitis, beginning in one or more papules which grow so as to cover a large patch. The color is pinkish to violaceous, and the surface is scaly. It does not ulcerate, but heals with central cicatrization and atrophy. It occurs most frequently on the face, but also elsewhere. It is more frequent in women than in men.
7. n. The Pacific fulmar petrel, Fulmarus glacialis rodgersi.
8. n. Lupus exedens, a form of lupus in which there is ulceration of the affected parts.

Wiktionary

1. n. astronomy A summer constellation of the northern sky, said to resemble a wolf. It lies south of the constellation Libra.

GNU Webster's 1913

1. n. (Med.) originally, a cutaneous disease with the appearance of the skin having been gnawed, and occurring under two distinct forms. Now used as a generic term for over ten distinguishable diseases having visible cutaneous symptoms.
2. n. (Astron.) The Wolf, a constellation situated south of Scorpio.

WordNet 3.0

1. n. any of several forms of ulcerative skin disease
2. n. a constellation in the southern hemisphere near Centaurus