D defs.my
Entry 1 sense Webster, 1913

Safety bicycle

· IPA
01 A bicycle with equal or nearly equal wheels, usually about 28 inches diameter, driven by pedals connected to the rear (driving) wheel by a …
  1. 1.
    A bicycle with equal or nearly equal wheels, usually about 28 inches diameter, driven by pedals connected to the rear (driving) wheel by a multiplying gear. Since the 1930's this has been the most common type of bicycle, now simply called bicycle. The older high-wheelers are often referred to as bone-rattlers. Also: bicycle