Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
castellated is an adjective meaning "having or resembling repeated square indentations like those in a battlement". It carries one recorded sense.
having or resembling repeated square indentations like those in a battlement
“a crenelated molding”
Definitions, synonyms and semantic relations for castellated come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.