mitten, n. 1. [19C+] usu. in pl., the hand, esp. the fist. 2. [mid-19C+] a rejection or dismissal; usu. in phrs. below. 3. [mid-19C+] a boxing glove; usu. in pl.; thus mitten-mill n., a prize-fight. 4. [late 19C–1930s] a handcuff; usu. in pl. 5. [1920s] a knuckle duster. 4 sub-entries