Spectroscopic device with two flat parallel reflecting surfaces used to measure wavelengths Crossword Clue

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Here is the answer for the crossword clue Spectroscopic device with two flat parallel reflecting surfaces used to measure wavelengths last seen in Mirror Quiz puzzle. We have found 40 possible answers for this clue in our database. Among them, one solution stands out with a 98% match which has a length of 6 letters. We think the likely answer to this clue is ETALON.

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Crossword Answer For Spectroscopic device with two flat parallel reflecting surfaces used to measure wavelengths:

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40 Potential Answers:

RankAnswerLengthSourceDate
98% ETALON Spectroscopic device with two flat parallel reflecting surfaces used to measure wavelengths (6) Mirror Quiz Feb 16, 2025
3% EVEN Flat, as a surface (4)
3% MIRROR Reflective surface (6) The Times Concise Jun 6, 2025
2% SYNC Match up, as two devices (4) New York Times Sep 14, 2025
2% MATS Yoga surfaces (4) USA Today Sep 14, 2025
2% ECHO Sound reflection (4)
2% ARISE Surface (5) LA Times Daily Sep 7, 2025
2% SEAR Scorch the surface (4) New York Times Sep 7, 2025
2% SILENTRETREAT Reflective period (13) New York Times Sep 6, 2025
2% TROPIC Parallel of latitude (6) The Telegraph Quick Sep 5, 2025

Last appeared together with the following clues in Mirror Quiz puzzle

Spectroscopic device with two flat parallel reflecting surfaces used to measure wavelengths Crossword Clue
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We found 40 solutions for Spectroscopic device with two flat parallel reflecting surfaces used to measure wavelengths. The top solutions are determined by popularity, ratings and frequency of searches. The most likely answer for the clue is ETALON.

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