speed indicator

noun

1

or speed gage

a

: speed counter

b

: tachometer

2

: a device (such as a display of canvas cones, a flashing or steady display of lights, or a display of flags) for showing the speed of a ship to other vessels in a formation

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now