'Ratch' definitions:

Definition of 'ratch'

(from WordNet)
noun
Mechanical device consisting of a toothed wheel or rack engaged with a pawl that permits it to move in only one direction [syn: ratchet, rachet, ratch]

Definition of 'Ratch'

From: GCIDE
  • Ratch \Ratch\ (r[a^]ch), n. (Zool.) Same as Rotche. [1913 Webster]

Definition of 'Ratch'

From: GCIDE
  • Ratch \Ratch\ (r[a^]ch), n. [See Rack the instrument, Ratchet.] A ratchet wheel, or notched bar, with which a pawl or click works. [1913 Webster]