D defs.my
Entry 2 senses Webster, 1913

odograph

· o·do·graph · IPA
01 n. A machine for registering the distance traversed by a vehicle or pedestrain.
  1. 1.
    A machine for registering the distance traversed by a vehicle or pedestrain.
  2. 2.
    A device for recording the length and rapidity of stride and the number of steps taken by a walker.