| Answer | Crossword Clue |
|---|---|
| del | an operator in differential calculus |
| dels | DEL, an operator in differential calculus |
| dels | differential operator, represented by an upside-down triangle symbol |
| del | differential operator, represented by an upside-down triangle symbol |
| transaxles | An integral driving axle and differential gear in a motor vehicle |
| transaxle | An integral driving axle and differential gear in a motor vehicle |
