| Answer | Crossword Clue |
|---|---|
| nonreturn | denoting a mechanism that permits flow in a pipe in one direction only |
| Answer | Crossword Clue |
|---|---|
| nonreturn | denoting a mechanism that permits flow in a pipe in one direction only |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.