Definitionen
1.NounThe migration of educated or talented people from less economically advanced areas to more economically advanced areas, especially to large cities or more developed nations.
2.NounA Jackson-Pratt drain.
3.VerbOf a nation or society, to be deprived of educated or talented people, who in turn migrate to larger cities or more developed nations.
4.VerbTo become mentally or psychologically fatigued or exhausted.