### speedometer

• n. 速度计；里程计
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speedometer 速度计

speedometer (n.)
1904, from speed + -meter. A Germanic-Greek hybrid and thus much execrated.
[T]he ancient Greeks & Romans knew what speed was, & yet no-one supposes they called it speed, whence it follows that speedo- & speedometer are barbarisms. [Fowler]
The correct classical formation is tachometer.
1. The speedometer showed that we were doing 50 miles per hour.

2. The speedometer was rocking between 60 and 65.

3. The instrument that measures the speed is a speedometer.

4. You can define the excessive speed of your motor - car by a speedometer.

5. The speedometer was touching 120 mph.