disclosing agent

British

noun

dentistry a vegetable dye, administered as a liquid or in tablet form ( disclosing tablet ), that stains plaque, making it readily apparent on the teeth

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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Disclosing agent X's role would have been memorable and unusual on its own.

From BBC

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