Hyper Dictionary

English Dictionary Computer Dictionary Video Dictionary Thesaurus Dream Dictionary Medical Dictionary

Search Dictionary:  

Meaning of RATCHET

Pronunciation:  'rachit

WordNet Dictionary
  1. [n]  mechanical device consisting of a toothed wheel or rack engaged with a pawl that permits it to move in only one direction
  2. [v]  move by degrees in one direction only, as of toothed wheels

RATCHET is a 7 letter word that starts with R.


 Synonyms: rachet, rachet up, ratch, ratchet down
 See Also: advance, click, detent, dog, go on, march on, mechanical device, move on, pass on, pawl, progress, ratchet screwdriver, ratchet wheel, spiral ratchet screwdriver



Webster's 1913 Dictionary
\Ratch"et\, n. [Properly a diminutive from the same word
as rack: cf. F. rochet. See 2d {Ratch}, {Rack} the
1. A pawl, click, or detent, for holding or propelling a
   ratchet wheel, or ratch, etc.

2. A mechanism composed of a ratchet wheel, or ratch, and
   pawl. See {Ratchet wheel}, below, and 2d {Ratch}.

{Ratchet brace} (Mech.), a boring brace, having a ratchet
   wheel and pawl for rotating the tool by back and forth
   movements of the brace handle.

{Ratchet drill}, a portable machine for working a drill by
   hand, consisting of a hand lever carrying at one end a
   drill holder which is revolved by means of a ratchet wheel
   and pawl, by swinging the lever back and forth.

{Ratchet wheel} (Mach.), a circular wheel having teeth,
   usually angular, with which a reciprocating pawl engages
   to turn the wheel forward, or a stationary pawl to hold it
   from turning backward.

Note: In the cut, the moving pawl c slides over the teeth in
      one direction, but in returning, draws the wheel with
      it, while the pawl d prevents it from turning in the
      contrary direction.