calipers

1. n. pl. An instrument, usually resembling a pair of dividers or compasses with curved legs, for measuring the diameter or thickness of bodies, as of work shaped in a lathe or planer, timber, masts, shot, etc.; or the bore of firearms, tubes, etc.; -- called also caliper compasses, or caliber compasses. Source: opted

2. An instrument, usually resembling a pair of dividers or compasses with curved legs, for measuring the diameter or thickness of bodies, as of work shaped in a lathe or planer, timber, masts, shot, etc.; or the bore of firearms, tubes, etc.; -- called also caliper compasses, or caliber compasses. Caliper square, a draughtsman's or mechanic's square, having a graduated bar and adjustable jaw or jaws. Knight. -- Vernier calipers. See Vernier. Source: webster

3. An instrument, usually resembling a pair of dividers orcompasses with curved legs, for measuring the diameter or thicknessof bodies, as of work shaped in a lathe or planer, timber, masts,shot, etc.; or the bore of firearms, tubes, etc.; -- called alsocaliper compasses, or caliber compasses. Caliper square, adraughtsman's or mechanic's square, having a graduated bar andadjustable jaw or jaws. Knight.-- Vernier calipers. See Vernier. Source: adambom

4. n an instrument for measuring the distance between two points (often used in the plural) v measure the diameter of something with calipers Source: ecdict

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