a group of European states which included parts of France, Germany, Austria, and Italy, and which were ruled by an emperor. It was established by Charlemagne in 800, and continued until 1806. For most of the period from the 13th century to the 19th century, its ruling family were the Hapsburgs.
Definition from the Longman Dictionary of Contemporary English Advanced Learner's Dictionary.
Dictionary pictures of the day
Do you know what each of these is called?
Click on any of the pictures above to find out what it is called.