[span-er] 
| 1. | a person or thing that spans. |
| 2. | Also called spanner wrench. a wrench having a curved head with a hook or pin at one end for engaging notches or holes in collars, certain kinds of nuts, etc. Compare pin wrench. |
| 3. | Chiefly British. a wrench, esp. one with fixed jaws. |
| span·ner (spān'ər) n.
[German, winding tool, from spannen, to stretch, from Middle High German, from Old High German spannan; see (s)pen- in Indo-European roots.] |
ər