development (de-vel´op-ment)

1. The act or process of natural progression in physical and psychological maturation from a previous, lower, or embryonic stage to a later, more complex, or adult stage. 2. The process of chromatography.
cognitive d. the evolving d. of the infant's and child's intellectual functions.
life-span d. development and mastery (or loss) of differing biologic, intellectual, behavioral, and social skills in different epochs of the life-span from the prenatal through the gerontological periods of growth.
psychosexual d. maturation and development of the psychic and behavioral phases of sexuality from birth to adult life through the oral, anal, phallic, latency, and genital phases.


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