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.

Source: Webster's Revised Unabridged Dictionary (1913)