tach

A noun referring to a measuring instrument that indicates the speed of rotation, often used in vehicles or machinery.

• 🇷🇺Существительное, обозначающее измерительный прибор, который показывает скорость вращения, часто используемый в транспортных средствах или механизмах.

1. Tachometer B2 formal technical

   An instrument that measures the rotation speed of a shaft or disk, as in a motor or other machine.

   • The mechanic checked the tach to see if the engine was idling correctly.
   • The car's tachometer showed the engine was running at 3000 RPM.
   • He installed a digital tach on his motorcycle to monitor performance.

   🇷🇺Тахометр

   Synonyms: tachometer