0 a kind of bicycle that you move by pushing along the floor with your feet rather than using pedals (= parts you push with your feet to turn the wheels), used by children for learning to ride a normal bicycle:
Learning the skills needed to ride a bike is fun with this wooden balance bike.
My three-year-old daughter has managed to master the pedal-less balance bike she was given for Christmas.
Balance bikes allow kids as young as 18 months to ride with a gliding/walking motion.