Noun: mph 'em'pee'eych
- The ratio of the distance travelled (in miles) to the time spent travelling (in hours)
"The car was going 65 mph on the highway";
- miles per hour
- A speedometer reading for the momentary rate of travel
"The car was travelling at 65 mph on the highway";
- miles per hour
Derived forms: mphs
Type of: indication, meter reading, rate, reading
Encyclopedia: Mph