(in World War II) the series of aerial combats that took place between British and German aircraft during the autumn of 1940 and that included the severe bombardment of British cities.
British Dictionary definitions for battle of britain
Battle of Britain
noun
the Battle of Britainfrom August to October 1940, the prolonged bombing of S England by the German Luftwaffe and the successful resistance by the RAF Fighter Command, which put an end to the German plan of invading Britain
