Definify.com
Webster 1913 Edition
Calipers
Cal′i-pers
,Noun.
pl.
[Corrupted from
caliber
.] 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
.