Pertaining to or connected with a foot or the feet: as, pedal extremities.Technically— Of or pertaining to a foot-like part of the body, as of a mollusk; podial: as, a pedal ganglion.Of or pertaining to the pes or hind foot only: opposed to manual.Pertaining to the feet of perpendiculars let fall from one point upon tangents to a fixed locus called a basis.4 (ped′ al). In music, relating to a pedal.In conchology: Any muscle of the foot or podium of a univalve. The posterior adductor of a bivalve, when there are two. See cuts under Astartidæ and Tridaenidæ.n. Any part of a machine or apparatus which is intended to receive and transmit power from the foot of the operator; a treadle: as, the pedals of a bicycle.n. In musical instruments, a foot-lever; a metal or wooden key or projecting bar operated by the foot. , , n. Same as organ-point.n. A pedal curve or surface, or one of which another is the pedal curve or surface.To work a pedal; use the pedals, as of a piano, organ, bicycle, etc.In geometry, pertaining to the feet of transversals on to the sides of a triangle through a given point and the vertices.n. In geometry, a pedal triangle (which see, under triangle).