A strait, 225 km (140 miles) in length, between Sweden and Denmark. It is linked to the North Sea by the Skagerrak and to the Baltic Sea by the Øresund.
Definition of Kattegat in US English:
Kattegat
proper nounˈkatəˌɡat
A strait, 140 miles (225 km) long, between Sweden and Denmark. It is linked to the North Sea by the Skagerrak and to the Baltic Sea by the Øresund.