tachometer

views updated May 23 2018

ta·chom·e·ter / taˈkämitər; tə-/ • n. an instrument that measures the working speed of an engine (esp. in a road vehicle), typically in revolutions per minute.

tachometer

views updated May 23 2018

tachometer instrument for measuring speed. XIX. f. Gr. tákhos speed + METER.