indican

in·di·can

noun \ˈin-də-ˌkan\

Definition of INDICAN

1

: an indigo-forming substance C₈H₇NO₄S found as a salt in urine and other animal fluids; also : its potassium salt C₈H₆KNO₄S

2

: a glucoside C₁₄H₁₇NO₆ occurring especially in the indigo plant and being a source of natural indigo