n. [ F. binocle; L. bini two at a time + oculus eye. ] (Opt.) A dioptric telescope, fitted with two tubes joining, so as to enable a person to view an object with both eyes at once; a double-barreled field glass or an opera glass. [ 1913 Webster ]
n. [ Pref. bi- + cycle. ] A light vehicle having two wheels one behind the other. It has a saddle seat and is propelled by the rider's feet acting on cranks or levers. [ 1913 Webster ]
n. One who rides a bicycle. [ 1913 Webster ]