Definition of ratch Ratch

ratch

We found 7 definitions of ratch from 6 different sources.

What does ratch mean?

Noun
ratch - mechanical device consisting of a toothed wheel or rack engaged with a pawl that permits it to move in only one direction
		ratchet, rachet
		mechanical device mechanism consisting of a device that works on mechanical principles
		ratchet screwdriver, spiral ratchet screwdriver a screwdriver with a ratchet (so the blade turns in only one direction) and a spiral in the handle (so the blade rotates) with downward pressure on the handle
		detent, pawl, click, dog a hinged catch that fits into a notch of a ratchet to move a wheel forward or prevent it from moving backward

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ratch (n.)
Same as Rotche.
ratch (n.)
A ratchet wheel, or notched bar, with which a pawl or click works.

ratch
rach, n. a rack or bar with teeth into which a click drops: the wheel which makes a clock strike: a white mark on the face of a horse.—v.t. to stretch: to streak.—v.i. to sail by tacks.—ns. Ratch′et, a bar acting on the teeth of a ratchet-wheel: a click or pall; Ratch′et-coup′ling, a device for uncoupling machinery in the event of a sudden stoppage; Ratch′et-drill, a tool for drilling holes, the bit mounted in a stock and rotated by a ratchet-wheel and lever; Ratch′et-jack, a form of screw-jack; Ratch′et-lē′ver, a lever fitted round a ratchet-wheel; Ratch′et-punch, a punch worked by means of a ratchet-lever; Ratch′et-wheel, a wheel having teeth against which a ratchet abuts, for changing a reciprocating into a rotatory motion, &c.; Ratch′et-wrench, a ratchet bed-key wrench.—adj. Ratch′ety, jerky.—n. Ratch′ment (archit.), a flying buttress springing from corner principals. [Rack.]

ratch
A straight part of a navigable river; the distance between any two elbows on the banks, wherein the current flows in uninterrupted course.

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ratch in sign language