In fortification, a lunette was originally an outwork of half-moon shape; later it became a redan with short flanks, in trace somewhat resembling a bastion standing by itself without curtains on either side. The gorge was generally open.
- One or more of the preceding sentences incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "Lunette". Encyclopædia Britannica. 17 (11th ed.). Cambridge University Press. p. 125.
- PEMcDuffie, Dictionary of Fortifications: Lunette Civil War Field Fortifications Website 2003.
- Texas State Historical Commission. "The Alamo Historical Marker".