Main Entry: he·mo·chro·mo·gen

Variant(s): or chiefly British hae·mo·chro·mo·gen \ˌhē-mō-ˈkrō-mə-ˌjen, -jən\

Function: noun

: a colored compound formed from or related to hemoglobin ; especially : a bright red combination of a nitrogen base (as globin or pyridine) with heme—compare hemoprotein