Question

What is brain drain?

Answer 1

brain drain ( singular noun )
: a situation in which many educated or professional people leave a particular place or profession and move to the another one the give them better pay or leaving conditions.

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Answer 2

Brain drain is a slang term indicating substantial emigration or migration of individuals. A brain drain can result from turmoil within a nation, the existence of favorable professional opportunities in other countries, or from a desire to seek a higher standard of living.

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