: the action or technique of establishing: as being a : the whole process of growth and differentiation by which the potentialities of a zygote, spore, or embryo are understood b : the gradual advance by evolutionary phases : evolution Org Nitrogen-that contains organic and natural compounds are very important https://chemicalintellectualprope09764.shivawiki.com/6835156/the_fact_about_development_that_no_one_is_suggesting