0 a wall around the top of a castle, with regular spaces in it through which the people inside the castle can shoot:
The building in front of them was a jumble of towers, crenellations and massive walls.
Soldiers were poised at the crenellations.
The bastions are decorated with crenellations and interspersed with machicolations.
At its top is a cornice and crenellations.
The centerpiece of an agricultural estate, the chteau was surrounded by a model farm and by water towers resembling crenellations, constructed between 1886 and 1888.
The castle consists of four large, powerful buildings of dressed granite, with crenellations and machicolations, enclosing a rectangular courtyard.
During the 15th century it seems that these crenellations were built over and a new hall fashioned on the walls of its predecessor.
