(biology) the process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing graduall more..(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(noun.process)
introduction during embryonic development of characters or structure not present in the earlier evolutionary history of the strain or species (such as more..introduction during embryonic development of characters or structure not present in the earlier evolutionary history of the strain or species (such as the addition of the placenta in mammalian evolution)(noun.process)
emergence during embryonic development of various characters or structures that appeared during the evolutionary history of the strain or species (noun.process)
(psychoanalysis) the process during which personality and sexual behavior mature through a series of stages: first oral stage and then anal stage and more..(psychoanalysis) the process during which personality and sexual behavior mature through a series of stages: first oral stage and then anal stage and then phallic stage and then latency stage and finally genital stage(noun.process)