tachometer

A measuring instrument used to indicate the speed of rotation of a shaft or disk, commonly found in vehicles and machinery.

• 🇪🇸Instrumento de medición que indica la velocidad de rotación de un eje o disco, comúnmente presente en vehículos y maquinaria.

1. Speed measuring device B2 formal technical

   An instrument that measures the rotation speed of a shaft or disk, typically in revolutions per minute (RPM).

   • The mechanic checked the tachometer to see if the engine was idling correctly.
   • In a car, the tachometer helps the driver know when to shift gears.
   • The boat's tachometer showed the propeller was spinning at 3000 RPM.

   🇪🇸Tacómetro

   Sinónimos: tach

• tachometers plural form
• tachometers' possessive plural form
• tachometer's possessive singular form