| Rating | Solver | Clue |
|---|---|---|
| PROCESS | Continuous action | |
| MILL | ...a manufactured product, or change the form of a raw material by the continuous repetition of some simple action; as, a sawmill; a stamping mi... | |
| SIPHON | ... the longer branch (when once filled) causes a continuous flow. The flow takes place only when the discharging extremity of the pipe ia lower th... |