crenelation

/ˌkrɛnəˈleɪʃən/
noun
  1. A pattern of alternating indentations and raised sections along the top of a wall, especially on a castle or fortress; battlements.
    • The crenelation on the old castle wall was perfectly preserved.
    • The architect added a decorative crenelation to the garden wall.
    • From a distance, the crenelation looked like a row of teeth against the sky.
  2. The act or process of building or adding battlements to a wall or structure.
    • The king authorized the crenelation of the city walls for protection.
    • The document recorded the crenelation of the manor in 1342.
    • Crenelation of the tower took several months of skilled stonemasonry.
Synonyms
What does "crenelation" mean? | whatsthatwordmean | whatsthatwordmean