Chihuahua UK /t͡ʃɪˈwaʊ(w).ə/US /t͡ʃɪˈwɑwɑ/ noun3 •The smallest breed of dog in the world, originating in Mexico and having large erect ears.The first time I saw a Chihuahua, I thought it was a battery-powered toy. Eyes too big for the face, ears of a large dog, took tens of steps to keep up, squeaked like a two-month-old pup. — 2019 •A city, the state capital of Chihuahua, Mexico. •A state of Mexico. formsChihuahuas · chihuahuas