Entry 3 senses · 2 variants Webster, 1913 Circumvallate · Cir·cum·val·late · IPA /sɜːkəmˈvæleɪt/ v. t. a. 01 v. t. To surround with a rampart or wall. 1. To surround with a rampart or wall. 02 a. Surrounded with a wall; inclosed with a rampart. 1. Surrounded with a wall; inclosed with a rampart. 2. Surrounded by a ridge or elevation; as, the circumvallate papillæ, near the base of the tongue.(Anat.)