pedal organ

1 definition found

pedal organ - Collaborative International Dictionary of English v.0.48 :

  Pedal \Pe"dal\ (p[=e]"dal in def 1; 277), a. [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 (Zool.), pertaining to the foot
        of a mollusk; as, the pedal ganglion.
        [1913 Webster]
  
     2. (p[e^]d"al) Of or pertaining to a pedal; having pedals.
        [1913 Webster]
  
     Pedal curve or Pedal 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.
        [1913 Webster]