| Answer | Crossword Clue |
|---|---|
| ONE | X to the zero power |
| ONE | Any nonzero number raised to the power of zero |
| CURIE | 3.7 x 10 to the 10th power disintegrations per second, to a physicist |
| nilpotent | Equal to zero when raised to a positive integral power |
| hardest | or relating to radiation of relatively high penetrating power having high energy hard X rays |
| zaxes | (in a three-dimensional Cartesian coordinate system) the axis along which values of z are measured and at which both x and y equal zero |
