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3 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 span·ner /ˈspænɚ/

From: Webster's Revised Unabridged Dictionary (1913)

 span·ner n.
 1. One who, or that which, spans.
 2. The lock of a fusee or carbine; also, the fusee or carbine itself. [Obs.]
 3. An iron instrument having a jaw to fit a nut or the head of a bolt, and used as a lever to turn it with; a wrench; specifically, a wrench for unscrewing or tightening the couplings of hose. [Chiefly British usage]
 4. pl. A contrivance in some of the earlier steam engines for moving the valves for the alternate admission and shutting off of the steam.

From: WordNet (r) 2.0

      n : a hand tool that is used to hold or twist a nut or bolt
          [syn: wrench]