a musical instrument often resembling a couple of dividers or compasses with curved feet for measuring the diameter or depth of figures by work shaped in a lathe or planer timber masts shot an such like or the bore of firearms pipes etc called in addition caliper compasses or quality compasses
- a guitar, frequently resembling a pair of dividers or compasses with curved legs, for measuring the diameter or depth of systems, since work formed in a lathe or planer, wood, masts, shot, etc.; and/or bore of firearms, pipes, etc.; -- called also caliper compasses, or quality compasses.
A metal or plastic tool similar to a compass regularly measure the diameter of an object. The skin fold depth in lot of body parts is measured with epidermis calipers to determine the lean body mass.