What is the meaning of congo red?

noun

  • A red-brown azo dye especially as a chemical pH indicator (congo red is red in basic and blue in acidic solutions. ).
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). congo red. Retrieved September 23, 2026, from http://smartdefine.org/congo_red/definitions/1248198
ChicagoWordNet. 2010. "congo red" http://smartdefine.org/congo_red/definitions/1248198 (accessed September 23, 2026).
HarvardWordNet 2010, congo red, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/congo_red/definitions/1248198>.
MLAWordNet. "congo red" 23 October 2010. Web. 23 September 2026. <http://smartdefine.org/congo_red/definitions/1248198>
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