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4 definitions found
From: DICT.TW English-Chinese Dictionary 英漢字典
 ratch
 制輪裝置;[防倒轉的] 棘齒
From: Webster's Revised Unabridged Dictionary (1913)
 Ratch n. Zool. Same as Rotche.
From: Webster's Revised Unabridged Dictionary (1913)
 Ratch n.  A ratchet wheel, or notched bar, with which a pawl or click works.
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From: WordNet (r) 2.0
 ratch
      n : 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]