in a single piece—consisting of or fashioned in a single unit:
- When the glove is being fabricated, the external layer is moulded in a single piece.
in one piece—
1. = in a single piece:
- People from San Salvador began to come to our ships in boats fashioned in one piece from the trunks of trees.
2. (also: all in one piece) without injury; relatively unharmed:
- My orders are just to get him to London in one piece. After that, he’s someone else’s worry.