Definition of Hadrian's Wall in English:

Hadrian's Wall

proper noun

  • A Roman defensive wall across northern England, stretching from the Solway Firth in the west to the mouth of the River Tyne in the east (about 120 km, 74 miles). It was begun in ad 122, after the emperor Hadrian's visit, to defend the province of Britain against invasions by tribes from the north.