CALIPERS n.
or 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. Knig…
CHEVAL-DE-FRISE n.
A piece of timber or an iron barrel traversed with iron-pointed spikes or spears, five or six feet long, used to defend a passage, stop a breach, or impede the advance of cavalry, etc. Obstructions of chain, boom, and cheval-de-frise. W. Irving.
CHIP n.
d to the log line. Buffalo chips. See under Buffalo. -- Chip ax, a small ax for chipping timber into shape. -- Chip bonnet, Chip hat, a bonnet or a hat made of Chip. See Chip, n., 3. -- A chip off the old block, a child who resembles either of his parents. [Colloq.] Milton.- Potato chips, Saratoga chips, thin slices…