The term 'bicycle (early form of)' can be summarized as the VELOCIPEDE, which is a 10-letter word. The VELOCIPEDE was an early form of the bicycle, invented in the 19th century. It was the first human-powered machine to use the two-wheeled design that is still used today. It was propelled by pushing the feet against the ground, and it had no pedals or chain drive. The VELOCIPEDE was the predecessor of the modern bicycle, and it paved the way for the development of the bicycle as we know it today.