| Answer | Crossword Clue |
|---|---|
| TACH | Speed measuring instrument (Abbr.) |
| speedometer | an instrument for measuring speed |
| tachometer | instrument for measuring speed of rotation |
| speedometers | SPEEDOMETER, an instrument for measuring speed |
| tachometers | TACHOMETER, instrument for measuring speed of rotation |
| rhythmometer | an instrument for measuring the speed of rhythms |
| rhythmometers | RHYTHMOMETER, an instrument for measuring the speed of rhythms |
| anemometers | An instrument for measuring the speed of the wind, or of any current of gas |
| anemometer | An instrument for measuring the speed of the wind, or of any current of gas |
