maturation, ripening, maturement -- (coming to full development; becoming mature)
growth, growing, maturation, development, ontogeny, ontogenesis -- ((biology) the process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level; "he proposed an indicator of osseous development in children")
festering, suppuration, maturation -- ((medicine) the formation of morbific matter in an abscess or a vesicle and the discharge of pus)