<p><strong>Noun</strong></p><ul><li>a foot-operated lever used to control certain mechanisms, as automobiles, or to play or modify the sounds of certain musical instruments, as pianos, organs, or harps.</li><li>a leverlike part worked by the foot to supply power in various mechanisms, as the bicycle.</li><li>Music. a foot-operated keyboard, as on an organ or harpsichord.</li><li>any of the keys of such a keyboard.</li></ul><p><strong>Verb</strong></p><ul><li>(used without object) to work or use the pedals, as in playing an organ or propelling a bicycle.</li><li>(used with object) to work the pedals of (an organ, bicycle, etc.).</li></ul><p><strong>Adjective</strong></p><ul><li>of or relating to a foot or the feet.</li><li>of or relating to a pedal or pedals.</li><li>using pedals: a pedal mechanism.</li></ul>