- The definition of a lay-by is the wider part of a narrow body of water where a boat can anchor temporarily or pass other watercraft.
An example of a lay-by is a wider place where a boat on a canal would be able to pass and move ahead of other boats.
- a widened section of a stream, canal, etc. where vessels can lay over or pass
- a railroad siding
- Brit. a widened section as along a highway, for emergency parking
Used by arrangement with John Wiley & Sons, Inc.