arboreal arboreal  /ɑr ˈbɔ ri əl/


  1. (adj) of or relating to or formed by trees
  2. (adj) inhabiting or frequenting trees
  3. (adj) resembling a tree in form and branching structure


  1. He spent years in Suriname, studying spider monkeys in their arboreal home.
  2. Some scientists believe that Neanderthals went extinct after a particularly volatile period of climate change shrank their arboreal hunting grounds.
  3. The pristine primary jungle is gone, an arboreal paradise logged, and both routes into Belaga, by boat or 4WD, show the ugly scars.



  • Since all the sites which have yielded fossil evidence of our earliest ancestors were forested or wooded, rather than open, Stringer says, "arboreal bipedalism is certainly a very plausible mechanism for the origins of walking upright."
    on May 31, 2007 By: Chris Stringer Source: New Scientist (subscription)

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pivotal pivotal
/ˈpɪ və təl /