Pentadactyl \Pen`ta*dac"tyl\, Pentadactyle \Pen`ta*dac"tyle\, a. [Gr. pentada`ktylos with five fingers or toes. See {Penta-}, and {Dactyl}.] 1. (Anat.) Having five digits to the hand or foot. [1913 Webster] 2. Having five appendages resembling fingers or toes. [1913 Webster]