| Answer | Crossword Clue |
|---|---|
| fumarole | hole in or near a volcano, from which vapor rises |
| fumarole | a hole in or near a volcano, from which vapor rises. |
| fumaroles | An opening in or near a volcano, through which hot sulfurous gases emerge |
| boilers | closed vessel or arrangement of vessels and tubes, together with a furnace or other heat source, in which steam or other vapor is generated from water to drive turbines or engines, supply heat, process certain materials, etc. |
| boiler | closed vessel or arrangement of vessels and tubes, together with a furnace or other heat source, in which steam or other vapor is generated from water to drive turbines or engines, supply heat, process certain materials, etc. |
| fumarolic | of or like a fumarole, a hole in a volcanic region from which hot gases and vapors issue |
