| Answer | Crossword Clue |
|---|---|
| countercurrents | COUNTERCURRENT, a current flowing in a direction opposite that of another current |
| countercurrent | a current flowing in a direction opposite that of another current |
| countercurrent | A current flowing in an opposite direction to another |
| countercurrents | A current flowing in an opposite direction to another |
| undertow | strong current under the surface that is moving in a direction opposite that of the surface current |
| rectifiers | An electrical device that converts an alternating current into a direct one by allowing a current to flow through it in one direction only |
| rectifier | An electrical device that converts an alternating current into a direct one by allowing a current to flow through it in one direction only |
