slopegauge

noun
UK /ˈsləʊpɡeɪdʒ/
US /ˈsloʊpɡeɪdʒ/

A tool that shows how steep or flat a hill is.

The engineer used a slopegauge to check the steepness of the road before building it.


OTHER MEANINGS

2. A device on a railway that measures the gradient of the track.

The train crew read the slopegauge to know how steep the next climb would be.

3. A simple marker or scale that indicates the tilt of a surface.

He placed a slopegauge on the ramp to make sure it was safe for wheelchairs.

4. A gauge used in skiing to describe the steepness of a ski run.

The resort posted a slopegauge at the top of the black diamond trail.