positively regulates developmental process positive regulation of biological process regulation of developmental process positive regulation of developmental process stimulation of developmental process activation of developmental process GO:0051094 biological_process up-regulation of developmental process Any process that activates or increases the rate or extent of development, the biological process whose specific outcome is the progression of an organism over time from an initial condition (e.g. a zygote, or a young adult) to a later condition (e.g. a multicellular animal or an aged adult). upregulation of developmental process up regulation of developmental process biological regulation