1. to furnish (a wall or battlement) with crenels; to provide with a series of open notches or indentations along the top
Usage: third person singular present tense of crenelate; architecture; often used in historical or defensive fortification contexts

Examples

• The medieval castle crenelates its outer walls for defensive purposes.
• The architect crenelates the fortress to allow archers to fire while remaining protected.
• The stonework crenelates the rampart with regularly spaced openings.
• Historic fortifications often crenelate their parapets in a distinctive pattern.
• The design crenelates the tower's crown with deep, evenly-spaced notches.