biological

biological
/ˌbaɪəˈlɔdʒɪkl; ˌbaɪə`lɑdʒɪkl/ adj
of or relating to biology 生物学的; 与生物学有关的
    a biological experiment, reaction 生物学实验[反应]
    biological soap-powders, ie ones that clean by destroying the living organisms contained in dirt 生物制剂皂粉.

牛津英汉双解词典