| Answer | Crossword Clue |
|---|---|
| hydrofluoric | as in hydrofluoric acid, a strong acid used for etching glass |
| Answer | Crossword Clue |
|---|---|
| hydrofluoric | as in hydrofluoric acid, a strong acid used for etching glass |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.