polychromatophilia

noun
poly·​chro·​mato·​phil·​ia | \ -krō-ˌmat-ə-ˈfil-ē-ə How to pronounce polychromatophilia (audio) \

Medical Definition of polychromatophilia

: the quality of being stainable with more than one type of stain and especially with both acid and basic dyes