adjective
- Architecture. built like a castle, especially with turrets and battlements.
- having many castles.
adjective
- having turrets and battlements, like a castle
- having indentations similar to battlementsa castellated nut; a castellated filament
“furnished with turrets and battlements,” 1670s, from Medieval Latin castellatus “built like a castle,” past participle of castellare “to fortify as a castle,” from Latin castellum “fort” (see castle (n.)). Related: Castellation.