Mile"age (?; 48), n.
1.
An allowance for traveling expenses at a certain rate per mile.
2.
Aggregate length or distance in miles; esp., the sum of lengths of tracks or wires of a railroad company, telegraph company, etc.
[Written also
milage.]
Constructive mileage, a mileage allowed for journeys supposed to be made, but not actually made.
Bartlett.
© Webster 1913.