| Answer | Crossword Clue |
|---|---|
| isochasm | a contour line showing auroral displays |
| isochasm | line on a map or chart connecting points where auroras are observed with equal frequency |
| Answer | Crossword Clue |
|---|---|
| isochasm | a contour line showing auroral displays |
| isochasm | line on a map or chart connecting points where auroras are observed with equal frequency |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.