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A ratchet wheel, or notched bar, with which a pawl or chick works.

Gravelly stone. [Prov. Eng.]

A pawl, click, or detent, for holding or propelling a ratchet wheel, or ratch, etc.

To tear with the nails; to cover with scratches.

frame for hay; a crib; a rack. [Obs.] Begin from first where He encradled was, In simple cratch, wrapt in a wad of hay. Spenser. Cratch cradle, a representation of the figure of the cratch, made upon the fingers with a string; cat's cradle; -- called also scratch cradle.

, as the claws, the nails, a pin, or the like. Small sand-colored stones, so hard as to scratch glass.Grew. Be mindful, when invention fails., To scratch your head, and bite your nails.Swift.

The first coat in plastering; -- called also scratchwork. See Pricking-up.

One that starts from the scratch; hence, one of first-rate ability.

A toy which imitates the sound of tearing cloth, -- used by drawing it across the back of unsuspecting persons. [Eng.]

A stiff wire brush for cleaning iron castings and other metal.

One who, or that which, scratches; specifically (Zoöl.), any rasorial bird.

With the action of scratching.

Cleavers.

See Scratch coat.

Characterized by scratches.

Marked with fine irregular streaks as if scratched by a needle. Lindley.

A device, one form of which consists of a scratched deposit of silver on glass, used in connection with the receiving apparatus for reading wireless signals. The electric waves falling on this contrivance increase its resistance several times. The anticoherer can be used in conjunction with a telephone.…

A ratchet-shaped scape wheel, which in some watches is acted upon by the axis of the balance wheel proper (in those watches called a balance).

Bologna vial, a vial of unannealed glass which will fly into pieces when its surface is scratched by a hard body, as by dropping into it a fragment of flint; whereas a bullet may be dropped into it without injury.

a carriage or railway car, by the pressure of rubbers against the wheels, or of clogs or ratchets against the track or roadway, or of a pivoted lever against a wheel or drum in a machine.