1. The action of crenellating or providing with battlements; the condition of being crenellated.
1874. Stubbs, Const. Hist. (1875), III. xxi. 536. The fortification or crenellation of these houses or castles.
2. concr. Embattled work; a battlement.
1849. Lytton, Caxtons, XII. vi. (D.). Octavo ramparts, flanked with quarto crenellations.
1864. Burton, Scot Abr., I. v. 294. He [the Scots laird] perched projecting crenelations or bastions on the top corners of his tower.
3. A notch or indentation.
In mod. Dicts.
