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Definition of the Mercury program from the Oxford Advanced Learner's Dictionary

the Mercury program

 
/ðə ˈmɜːkjəri prəʊɡræm/
 
/ðə ˈmɜːrkjəri prəʊɡræm/
(also Project Mercury
 
/ˌprɒdʒekt ˈmɜːkjəri/
 
/ˌprɑːdʒekt ˈmɜːrkjəri/
)
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  1. the US space programme (1961-63) to put a man into orbit around the earth. This was achieved when John Glenn became the first person to go into orbit on 20 February 1962. see also Alan Shepard
previously
adverb
 
 
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