This clue appeared in the NYT Crossword on Wednesday, November 19, 2025 (50 Down). The answer is hidden below until you want it. Wednesday sits mid-week in difficulty, with more wordplay than Monday or Tuesday.
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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