CALLIPERS
- An instrument for measuring external or internal dimensions, having two hinged legs resembling a pair of compasses and in-turned or out-turned points
- An instrument performing a similar function but having one linear component sliding along another, with two parallel jaws and a vernier scale
- A motor-vehicle or bicycle brake consisting of two or more hinged components
- A metal support for a person's leg
- CALLIPER, to caliper (to use a type of measuring device) [v]