ratch
1. [ noun ] mechanical device consisting of a toothed wheel or rack engaged with a pawl that permits it to move in only one direction
Synonyms: rachet ratchet
Related terms: mechanical_device spiral_ratchet_screwdriver ratchet_wheel pawl
Similar spelling:   Radich
  Raatz
  Rattus
  Rathke
  Radtke
  radish