hemen.(名词)The deep red, nonprotein, ferrous component of hemoglobin, C34H 32FeN 4O 4. 血红素:一种深红色的,不含蛋白的含铁物质,是血红蛋白的组成成份,C34H 32FeN 4O 4 来源:Short for hematin hematin的简写