SINCE 1828
indirubin
noun
in·di·ru·bin
| \ ˌin-də-ˈrü-bən, ˈin-də-ˌ
\
\
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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Merriam-Webster unabridged
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