\Pe*dom"e*ter\, n. [Pedi-, pedo- + -meter: cf. F.
p['e]dom[`e]tre.] (Mech.)
An instrument for including the number of steps in walking,
and so ascertaining the distance passed over. It is usually
in the form of a watch; an oscillating weight by the motion
of the body causes the index to advance a certain distance at
each step.