PEDAL

pedal. Pedal, n. one of the large pipes of an organ

---

Pe″dal (pē″dal in def 1; 277), a. [[L. pedalis, fr. pes, pedis, foot. See Foot, and cf. Pew.]] 1. 1. Of or pertaining to the foot, or to feet, literally or figuratively; specifically (Zoöl.), pertaining to the foot of a mollusk; as, the pedal ganglion.
2. 2. (pĕd″al) Of or pertaining to a pedal; having pedals.
Pedal curve or surface (Geom.), the curve or surface which is the locus of the feet of perpendiculars let fall from a fixed point upon the straight lines tangent to a given curve, or upon the planes tangent to a given surface. — Pedal note (Mus.), the note which is held or sustained through an organ point. See Organ point, under Organ. — Pedal organ (Mus.), an organ which has pedals or a range of keys moved by the feet; that portion of a full organ which is played with the feet.