pedometer

n instrument that measures the distance a person walks by recording the number of steps taken 计步器; 步程计.

pedantic, pedantically, pedantry, peddle, peddler, pederast, pederasty (also paederasty), pedestal, pedestal table, pedestrian, pedestrian crossing, pedestrian precinct, pedi-, pediatrics, pedicel, pedicure, pedigree, pediment, pedlar, pedlar (US peddler), pee, peek, peekaboo, peel, peeler, peelings, peep, peep-hole, peep-show, peeper, Peeping Tom, peepul, peer, peer group, peer of the realm, peerage, peeress, peerless, peeve, peeved,