This page lists every known solution for the clue “Refractive Index” in Crossword Challenge. Because this clue can appear in different puzzles (levels) with different required answers, we first list all the answers, then show which one appears in each puzzle below.
Refractive Index Crossword Challenge Answers (All Variants)
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If more than one answer is listed, open your puzzle page below to confirm the one used there.
All Known Answers for Refractive Index Clue
Puzzle 1190 — - Puzzle 1449 —
- Puzzle 1459 —
- Puzzle 1485 —
- Puzzle 1721 —
- Puzzle 1766 —
- Puzzle 1974 —
Where This Clue Appears
Last Checked: May 04, 2026