stone & earth wall extending across N China, built
as a defense against invaders in the 3d cent
, with later extensions
: 15-30 ft (4.5-9 m) high; 12-20 ft (3.5-6 m) wide
(2,415 km) long
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by
Houghton Mifflin Harcourt. All rights reserved.