Chihuahua(redirected from Chihuahua (state))
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a very small (1-6 lb) dog originating in Mexico. It has a prominent, domed skull, erect ears and medium-length tail carried over the back. There are long-coated and smooth-coated varieties in many colors. The breed is predisposed to hydrocephalus and the presence of an open fontanelle (molera) is allowed for in the breed standard.