I believe the answer is: <span>pruning
</span>In psychological term, pruning is the process of eliminating a certain information from our brain in order to be replaced with the information that are deemed more necessary for our everyday use.
In language learning, pruning could happen when after we acquire the knowledge of new language but left them unused.
he called them the Brains Trust
An area of land under the ruler or a state
The most important benefits were cost reduction, increasing patient satisfaction, increasing home care and outpatient services. The most important disadvantage included reducing access, reducing the rate of hospital admissions and increasing employees' workload and dissatisfaction.