1ped·al 
/ˈpɛdl̟/ noun
plural ped·als /ˈpɛdl̟/ noun [count] 1 : a flat piece of metal, rubber, etc., that you push with your foot to make a machine move, work, or stop
▪ a bike's pedals ▪ a car's gas/brake pedal — see picture at bicycle 2 : a lever on a piano, organ, etc., that you push with your foot to make or change a sound
▪ a bike's pedals ▪ a car's gas/brake pedal — see picture at bicycle
put the pedal to the metal
US, informal 1 : to drive very fast 2 : to work very quickly
▪ We are going to have to put the pedal to the metal if we want to finish on time.
▪ We are going to have to put the pedal to the metal if we want to finish on time.
