maturation - noun

coming to full development; becoming mature

(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

(medicine) the formation of morbific matter in an abscess or a vesicle and the discharge of pus

maturation - thesaurus

development   festering   growing   growth   maturement   ontogenesis   ontogeny   ripening   suppuration