A warm ocean current that flows from the Gulf of Mexico parallel with the US coast toward Newfoundland, Canada, and then continues across the Atlantic Ocean toward north-western Europe as the North Atlantic Drift.
Definition of Gulf Stream in US English:
Gulf Stream
proper nounˈɡəlf ˌstrimˈɡəlf ˌstrēm
A warm ocean current that flows from the Gulf of Mexico parallel with the US coast toward Newfoundland, Canada, and then continues across the Atlantic Ocean toward northwestern Europe as the North Atlantic Drift.