What is the answer to "Etching compound" in the Newsday Crossword?

The answer to the Newsday Crossword clue "Etching compound" is ACID (4 letters).

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Etching compound Newsday Crossword Clue

Across clue · from the October 4, 2026 puzzle

Stuck on “Etching compound” from the Newsday Crossword? Here is the verified answer:

Answer

ACID

4 letters · Across · last seen October 4, 2026

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