Definition of "crenelate" []

• To furnish with crenelles. (verb)
• To indent; to notch. (verb)

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• "With this branch of their work, Captain Tempe was determined that they should be thoroughly acquainted, and they were taught how to use cover of all kinds with advantage; how to defend a building, crenelate a wall, fell trees to form an obstacle across roads, or a breastwork in front of them; and how to throw themselves into square, rapidly, to repel cavalry."
• "In this weather? "and Durtal pointed at the yellow sky over which black clouds, like factory smoke, were racing, so low that the tin chimneys seemed to penetrate them and crenelate them with little spots of clarity."