This clue appeared in the NYT Crossword on Sunday, January 4, 2026 (106 Across). The answer is hidden below until you want it. Sunday puzzles are large (21 by 21) and themed, about as hard as a Wednesday or Thursday.
Answer length: 5 squares
First letter
C _ _ _ _
First and last letters
C _ _ _ E
Show the answer
About the answer
CURIE as a word: 3.7×10¹⁰ decays per second, as a unit of radioactivity. Symbol Ci; A surname from French, especially referring to Marie Curie and her husband Pierre Curie.
CURIE has been an answer once in the NYT Crossword and Mini puzzles we have on file, which go back to October 23, 2025.
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