straightpiece
nounUK /ˈstreɪtpiːs/
US /ˈstreɪtpiːs/
A straight piece is a part that is not bent or curved.
He used a straightpiece of wood to fix the fence.
OTHER MEANINGS
2. A section of pipe or tubing that has no bends.
The plumber joined the straightpiece to the elbow fitting.
3. A straight segment of a track or road.
The train sped along the straightpiece before the curve.
4. A piece in a game or puzzle that is shaped straight.
She placed the straightpiece into the puzzle to finish the edge.