1. Antonine Wall - Noun
2. Antonine Wall - Proper noun
a fortification 37 miles long across the narrowest part of southern Scotland (between the Firth of Forth and the Firth of Clyde); built in 140 to mark the frontier of the Roman province of Britain
Source: WordNetD. J. Breeze, The Antonine Wall (John Donald, 2006), p. 167. The Romans retreated to the line of Hadrian's Wall. Moffat, Before Scotland, pp. 297–301. Source: Internet
Strategic walls across open country were far rarer, and Hadrian's Wall (from 122) and the Antonine Wall (from 142, abandoned only 8 years after completion) are the most significant examples, both on the Pictish frontier. Source: Internet
Within a year the Antonine Wall was recaptured, but by 163 or 164 it was abandoned. Source: Internet