Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
arboreous is an adjective meaning "inhabiting or frequenting trees". It carries 3 recorded senses.
abounding in trees
“an arboreous landscape”
“violets in woodsy shady spots”
“a woody area near the highway”
resembling a tree in form and branching structure
“arborescent coral found off the coast of Bermuda”
“dendriform sponges”
Definitions, synonyms and semantic relations for arboreous come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.