indirubin

noun
in·​di·​ru·​bin | \ ˌin-də-ˈrü-bən, ˈin-də-ˌ How to pronounce indirubin (audio) \

Medical Definition of indirubin

: a dark red crystalline pigment C16H10N2O2 isomeric with indigo (sense 1b) found in natural indigo and sometimes in urine

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