| Answer | Crossword Clue |
|---|---|
| ONE | Number whose square equals its square root |
| ONE | Its square equals its square root |
| imaginary | (of a number or quantity) Expressed in terms of the square root of a negative number (usually the square root of ?1, represented by i or j) |
| ONE | Number that's its own square root |
| ONE | Number that is its own square root |
