Millon's reagent
noun
Mil·lon's reagent
| \ mē-ˈlōnz-
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variants:
or Millon reagent \ mē-ˈlōn-
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Medical Definition of Millon's reagent
: a solution that is usually made by dissolving mercury in concentrated nitric acid and diluting with water and that when heated with phenolic compounds gives a red coloration used as a test especially for tyrosine and proteins containing tyrosine