We have the 8-letter answer for Luminescent substance crossword clue, last seen in the 7 Little Words September 23, 2026 puzzle. This answer will help you finish the puzzle you’re working on.
Luminescent substance 7 Little Words Answer is…
Find more clues, hints, and info below.
Find more clues, hints, and info below.
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Clue & Answer Definitions
- PHOSPHOR (noun)
- a synthetic substance that is fluorescent or phosphorescent; used to coat the screens of cathode ray tubes
- LUMINESCENT (adjective)
- emitting light not caused by heat
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