Cur′tain.
1. (Fortification.) That portion of a rampart which extends between and joins the flanks of two bastions. See bastion.
2. (Locksmithing.) A shifting plate, which, when the key is withdrawn, interposes so as to screen the inner works from being seen or reached by tools. 3. A strip of leather which overlaps the parting of a trunk. 4. A dependent cloth serving as a screen.