1592953439000 1312632483000 term-51132 1616541593942 1312632545000 1616290594818 adlib fitz-online adlib-term-51132 f3be8bb1-2cbd-3eb3-8ac1-2bb0f565d0b3 2 1 scope note In military architecture, a projecting outwork forming a salient angle beyond the main ditch and in front of the curtain wall. PDARC reference term-47700 adlib-term-47700 483fb500-a336-3c39-a18d-155aa730b3b9 ravelin V.PJ.AFU.ALO.ARI.BUE.AFU.CFS.BZY 1 code V.PJ.AFU.ALO.ARI.BUE.AFU.CFS.BZY 1 ravelins reference term-47707 adlib-term-47707 56e28713-3a89-3d82-805b-7f9c816de7a7 outworks ravelins term