| Answer | Crossword Clue |
|---|---|
| NSEC | One billionth of one sixtieth of a min. |
| NSEC | One sixty-billionth of a min. |
| Answer | Crossword Clue |
|---|---|
| NSEC | One billionth of one sixtieth of a min. |
| NSEC | One sixty-billionth of a min. |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.