noun
spanner
A device or part that bridges or adjusts a gap.
The spanner bridges the gap between the two support posts.
Etymology
Spanner names something that spans. In this general mechanical use, it bridges a distance or operates across a gap between parts.
More examples
- An adjustable spanner extends to fit the wider gap.
- Secure both ends of the spanner to the frame.
- These spanners connect the rails across the opening.
Forms
spanner · spanners
Similar words
- crosspiece
- Connects supports across a space without necessarily adjusting their separation.
- spacer
- Maintains a set gap rather than necessarily bridging it.