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Dye Indicating Acidity Crossword Clue

There is 1 exact and 142 possible answers.
We've checked our database and believe the answer is LITMUS which was last seen in the The Guardian Speedy crossword.
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We think the answer to this crossword clue is: LITMUS

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99%6Exact Match!
noun

• a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutions; used as a very rough acid-base indicator

27%14 It ranges from -1 to 1, with -1 indicating a perfect negative relationship, 0 indicating no relationship, and 1 indicating a perfect positive relationship.
noun

• an index of the relation between any two sets of scores that can both be represented on ordered binary dimensions (e.g., male-female)

26%8 Has been used as an indicator dye in the determination of acidity
noun

• a red-brown azo dye especially as a chemical pH indicator (congo red is red in basic and blue in acidic solutions)

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Clue Last Found In...

Source #Number Answer
The Guardian Speedy14 Jul 2024 Across 10
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