This page lists every known solution for the clue “Infrared Radiation” 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.
Infrared Radiation Crossword Challenge Answers (All Variants)
Ir
If more than one answer is listed, open your puzzle page below to confirm the one used there.
All Known Answers for Infrared Radiation Clue
Puzzle 32 — - Puzzle 745 —
- Puzzle 988 —
- Puzzle 1219 —
- Puzzle 1348 —
- Puzzle 1359 —
Where This Clue Appears
Last Checked: May 04, 2026