gallein

noun
gal·​lein | \ ˈgal-ē-ən How to pronounce gallein (audio) , ˈgal-ˌēn How to pronounce gallein (audio) \

Medical Definition of gallein

: a metallic-green crystalline phthalein dye C20H12O7 used especially in dyeing textiles violet and as an indicator

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miscellaneous remnants or debris

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