| Answer | Crossword Clue |
|---|---|
| OPAQUE | Light-blocking |
| OPACITY | Light-blocking ability |
| eclipse | the blocking of the light of one heavenly body by another |
| eclipser | the blocking of the light of one heavenly body by another |
| opaques | blocking the passage of radiant energy and especially light exhibiting opacity (see opacity) |
| opaquer | blocking the passage of radiant energy and especially light exhibiting opacity (see opacity) |
| opaquest | blocking the passage of radiant energy and especially light exhibiting opacity (see opacity) |
