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in·tra·ga·lac·tic | \ ˌin-trə-gə-ˈlak-tik 
, -(ˌ)trä- \
, -(ˌ)trä- \Definition of intragalactic
: situated or occurring within the confines of a single galaxy
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Time Traveler for intragalactic
The first known use of intragalactic was in 1964
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