| Answer | Crossword Clue |
|---|---|
| GPS | Device useful in geocaching (abbr.) |
| DEICER | Useful device to have in winter |
| doodlebug | divining rod or similar device supposedly useful in locating underground water, oil, minerals, etc. |
| DIRECTIONFINDER | Device useful in navigation, or in discovering the hidden theme in the answers to starred clues |
| bioreactor | a device or apparatus in which living organisms, such as bacteria, synthesise useful substances or break down waste |
| bioreactors | BIOREACTOR, a device or apparatus in which living organisms, such as bacteria, synthesise useful substances or break down waste |
