spanner
/ˈspænə/ noun C2- A (usually sparse) graph whose shortest path distances approximate those in a dense graph or other metric space.
- A hand tool shaped like a small crank handle, for winding the spring of a wheel lock on a musket.
Plural spanners
From the library
There was a saddlebag with spanner and oilcan, but no clue as to the owner.
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