Category:Pedal

Pe"dal, a. Etym: [l. pedalis, fr. pes, pedis, foot. See foot, and cf. Pew.]

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. (

Defn: 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.

Pedal Pe"dal, n. Etym: [cf. F. pédale, it. pedale. See pedal, a.]

1. (mech.)

Defn: a lever or key acted on by the foot, as in the pianoforte to Raise the dampers, or in the organ to open and close certain pipes; a Treadle, as in a lathe or a bicycle.

2. (geom.)

Defn: a pedal curve or surface.