Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
arboresque is an adjective meaning "resembling a tree in form and branching structure". It carries one recorded sense.
resembling a tree in form and branching structure
“arborescent coral found off the coast of Bermuda”
“dendriform sponges”
Definitions, synonyms and semantic relations for arboresque come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.