Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
visualised is an adjective meaning "seen in the mind as a mental image". It carries one recorded sense.
seen in the mind as a mental image
“the glory of his envisioned future”
“the snow-covered Alps pictured in her imagination”
“the visualized scene lacked the ugly details of real life”
Definitions, synonyms and semantic relations for visualised come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.