This clue appeared in the NYT Crossword on Sunday, April 19, 2026 (6 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
P _ _ _ _
First and last letters
P _ _ _ M
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About the answer
PRISM as a word: (optics) A transparent block in the shape of a prism (sense 1), typically with triangular ends, used to reflect or refract light; (geometry) A polyhedron with parallel ends of the same polygonal shape and size, the other faces being parallelogram-shaped sides.
PRISM 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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