Clinometer
/klaɪˈnɑːmɪtər,klɪˈnɑːmɪtər/
Definition 1 of 1
Pro Tip 1/3Technical Usage
The word 'clinometer' is used in technical fields like engineering, surveying, and navigation. 
The surveyor taught the intern how to read the clinometer for accurate results.
Pro Tip 2/3Measuring Angles
A clinometer measures angles, often in degrees, between horizontal and lines of sight. 
He adjusted the clinometer to measure the angle of the hill we were climbing.
Pro Tip 3/3Physical Object
It's a physical device, sometimes part of other instruments like a theodolite, for practical measurements. 
In our physics class, we used a clinometer to calculate the height of a flagpole.