What is another word for "machicolation"?

Roget's Thesaurus (1911) lists these synonyms for "machicolation": battlement, crenate, crenated, crenelle, crenulate, crimp, cut, dent, dentate, dentated, denticulate, denticulated, depression, dimple, embrasure, indent, indentation, jag, nick, notch, palmated, saw, scallop, scarify, scollop, scotch, serrated, tooth, toothed, vandyke.