transatlantic
adj. B2 Upper Intermediate US //ˌtɹænzətˈɫænɪk// UK //tɹænsɐtlˈɑːntɪk// transat·lantic
adj. crossing the Atlantic Ocean, or involving countries on both sides of it — like the US and the UK.
adj. crossing or extending across the Atlantic Ocean; relating to or involving countries on both sides of the Atlantic. Typically used attributively before a noun.
The first transatlantic flight took place over a century ago.
The two companies formed a transatlantic partnership to share research between their London and New York offices.
Maintaining a transatlantic relationship requires significant effort to bridge the time zone differences and cultural nuances that exist between European and North American partners.
From trans- + Atlantic.
Usage
Typically used attributively before the noun it modifies.