Also found in: Dictionary, Thesaurus, Financial, Encyclopedia, Wikipedia.
Tegenaria agrestis(te-ge-nā'rē-a a-grĕs'tis),
A native European spider now resident in the Pacific Northwest of the U.S., formerly falsely thought capable of inducing necrotic arachnidism.
Synonym(s): hobo spider
Farlex Partner Medical Dictionary © Farlex 2012
A 5-in (45 mm) long brown spider with gray markings found in northwestern North America. Males are more venomous than females. A bite causes erythema, blisters, subsequent necrosis of the skin, and sometimes severe, persistent headaches. Systemic corticosteroid therapy may be helpful. Aplastic anemia, intractable diarrhea, or vomiting may occur and, although rare, may be fatal.
See also: spider
Medical Dictionary, © 2009 Farlex and Partners