odograph
O"do*graph, n. [Gr. way + -graph.] 1. A machine for registering the distance traversed by a vehicle or pedestrain. 2. A device for recording the length and rapidity of stride and the number of steps taken by a walker.
O"do*graph, n. [Gr. way + -graph.] 1. A machine for registering the distance traversed by a vehicle or pedestrain. 2. A device for recording the length and rapidity of stride and the number of steps taken by a walker.