It turns red litmus paper blue Crossword Clue
4 letters · New York Times · Tuesday, January 25, 2022 · 39-Across
Appeared in 1 New York Times Crossword: Tuesday, January 25, 2022.
Exact puzzle match · New York Times · January 25, 2022 · 39-Across · 4 letters
BASE0 of 4 letters revealed
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What does this clue mean?
any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water; "bases include oxides and hydroxides of metals and ammonia"
noun
WordNet® (Princeton University)
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