| Answer | Crossword Clue |
|---|---|
| actinometries | ACTINOMETRY, the measurement of heating power of the sun's rays |
| Answer | Crossword Clue |
|---|---|
| actinometries | ACTINOMETRY, the measurement of heating power of the sun's rays |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.