Arboreal

adj. tree-like, pertaining to trees; living in trees

Arboreal is a word meaning "related to or resembling trees". Its meaning comes from the Latin arbor, meaning tree. In biology, an arboreal animal is one which inhabits or spends large amounts of time in trees or bushes.
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Adjective
1. of or relating to or formed by trees; "an arborous roof"
(synonym) arborical, arborary, arborous
(pertainym) tree
2. inhabiting or frequenting trees; "arboreal apes"
(synonym) arboreous, tree-living
(antonym) nonarboreal
3. resembling a tree in form and branching structure; "arborescent coral found off the coast of Bermuda"; "dendriform sponges"
(synonym) arboreous, arborescent, arboresque, arboriform, dendriform, dendroid, dendroidal, treelike, tree-shaped
(similar) branchy

(a.)
Of or pertaining to a tree, or to trees; of nature of trees.
  

(a.)
Attached to, found in or upon, or frequenting, woods or trees; as, arboreal animals.
  

Tree-living (like monkeys).