Arboreal \Ar*bo"re*al\, a.

1. Of or pertaining to a tree, or to trees; of nature of trees. --Cowley. [1913 Webster]

2. Attached to, found in or upon, or frequenting, woods or trees; as, arboreal animals. [1913 Webster]

Woodpeckers are eminently arboreal. --Darwin. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

44 Moby Thesaurus words for "arboreal": V-shaped, Y-shaped, arborary, arboreous, arborescent, arboresque, arborical, arboriform, biforked, bifurcate, bifurcated, branched, branching, branchlike, bushlike, bushy, citrous, coniferous, crotched, deciduous, dendriform, dendritic, dendroid, evergreen, forked, forking, forklike, furcate, hardwood, nondeciduous, piny, pronged, ramous, scrubbly, scrubby, scrublike, shrubby, shrublike, softwood, tree-shaped, treelike, tridentlike, trifurcate, trifurcated

Source: Moby Thesaurus II by Grady Ward, 1.0
 

arboreal adj
1: of or relating to or formed by trees; "an arborous roof" [syn: arborical, arborary, arborous]
2: inhabiting or frequenting trees; "arboreal apes" [syn: arboreous, tree-living] [ant: nonarboreal]
3: resembling a tree in form and branching structure; "arborescent coral found off the coast of Bermuda"; "dendriform sponges" [syn: arboreous, arborescent, arboresque, arboriform, dendriform, dendroid, dendroidal, treelike, tree-shaped]

Source: WordNet (r) 2.0
 

Arboreal \Ar*bo"re*al\, a.

1. Of or pertaining to a tree, or to trees; of nature of trees. --Cowley.

2. Attached to, found in or upon, or frequenting, woods or trees; as, arboreal animals.

Woodpeckers are eminently arboreal. --Darwin.

Source: Webster's Revised Unabridged Dictionary (1913)