act of improving by expanding or enlarging or refining
a process in which something passes by degrees to a different stage (especially a more advanced or mature stage)
(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
a recent event that has some relevance for the present situation
systematic investigation to establish facts
any specific behavior
an organic process that takes place in the body
a search for knowledge
farther along in physical or mental development
