from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Relating to or resembling a tree.
  • adj. Living in trees; arboreous: arboreal apes.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Of, relating to, or resembling a tree; treely.
  • adj. Living in or among trees.
  • n. Any tree-dwelling creature.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Of or pertaining to a tree, or to trees; of nature of trees.
  • adj. Attached to, found in or upon, or frequenting, woods or trees.

from The Century Dictionary and Cyclopedia

  • Pertaining to or of the nature of trees.
  • Living on or among trees; inhabiting or frequenting forests.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. of or relating to or formed by trees
  • adj. inhabiting or frequenting trees
  • adj. resembling a tree in form and branching structure


From Latin arboreus, from arbor, tree.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin arbor ("tree"). (Wiktionary)



Log in or sign up to get involved in the conversation. It's quick and easy.