This clue appeared in the Mini Crossword on Wednesday, January 14, 2026 (3 Down). The answer is hidden below until you want it.
How to read this clue
This is a fill-in-the-blank clue: the answer completes the phrase, title or quotation.
Answer length: 5 squares
First letter
O _ _ _ _
First and last letters
O _ _ _ E
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About the answer
OZONE as a word: (inorganic chemistry) An allotrope of oxygen (symbol O₃) having three atoms in the molecule instead of the usual two; it is a toxic gas, generated from oxyge...; (transitive) To treat with ozone.
OZONE has been an answer 3 times in the NYT Crossword and Mini since November 19, 2025.
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