Clue: Units of illumination
Units of illumination is a crossword puzzle clue that we have spotted 4 times. There are related clues (shown below).
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Recent usage in crossword puzzles:
- Universal Crossword - Aug. 7, 2018
- USA Today - June 12, 2008
- New York Times - June 5, 1992
- New York Times - June 12, 1979
