| Answer | Crossword Clue |
|---|---|
| swiftest | Moving or capable of moving at high speed |
| separation | The generation of a turbulent boundary layer between the surface of a body and a moving fluid, or between two fluids moving at different speeds |
| separations | The generation of a turbulent boundary layer between the surface of a body and a moving fluid, or between two fluids moving at different speeds |
| supersonic | a wave or frequency moving at a speed greater than the speed of sound in air |
| supersonics | SUPERSONIC, a wave or frequency moving at a speed greater than the speed of sound in air |
| whipsaw | (of a trailer, railroad car, etc.) to swing suddenly to the right or left, as in rounding a sharp curve at high speed |
