|informal the emigration of scientists, technologists, academics, etc, for better pay, equipment, or conditions|
|a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.|
|an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.|
The departure of educated or talented persons for better pay or jobs elsewhere, as in The repression of free speech in Germany triggered a brain drain to Britain and America. The term originated about 1960, when many British scientists and intellectuals emigrated to the United States for a better working climate.