Source : Webster's Revised Unabridged Dictionary (1913)

Pedipalpi \Ped`i*pal"pi\, n pl. [NL. See {Pedipalpus}.]
   (Zo["o]l.)
   A division of Arachnida, including the whip scorpions
   ({Thelyphonus}) and allied forms. Sometimes used in a wider
   sense to include also the true scorpions.

Pedipalpus \Ped`i*pal"pus\, n.; pl. {Pedipalpi}. [NL. See {Pes},
   and {Palpus}.] (Zo["o]l.)
   One of the second pair of mouth organs of arachnids. In some
   they are leglike, but in others, as the scorpion, they
   terminate in a claw.

Source : WordNet®

Pedipalpi
     n : whip scorpions [syn: {order Pedipalpi}, {Uropygi}, {order
         Uropygi}]