| Answer | Crossword Clue |
|---|---|
| ondograph | an instrument for producing a graphical recording of an alternating current |
| Answer | Crossword Clue |
|---|---|
| ondograph | an instrument for producing a graphical recording of an alternating current |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.