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Amino ___ (protein building block)

Nora Whitfield Crossword Editor · Verified answers

Looking for the answer to the USA Today Crossword clue “Amino ___ (protein building block)”? The solution is ACID, a 4-letter word. This clue was most recently seen in the July 22, 2026 (Wednesday) USA Today Crossword. Tap any date below to open that day's complete puzzle, or search another clue from the bar above.

Answer

ACID

Last appearance

July 22, 2026WednesdayACID

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