(military, historical) The outer wall of a castle or defensive wall between two bastions. / (architecture) The non-load-bearing outer skin of a modern building.

To separate, isolate or block by means of a curtain or other barrier. / (figuratively) To isolate.

plural of curtain lecture

plural of curtain-raiser

plural of curtain raiser

plural of fortification curtain

A ring for holding up a curtain.

plural of curtain ring

plural of curtain array

A large multielement directional wire radio transmitting antenna, used in the shortwave radio bands.