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1. Relating to or resembling a tree.
2. Living in trees; arboreous: arboreal apes.

[From Latin arboreus, from arbor, tree.]

ar·bo′re·al·ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


in trees or by trees
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Each tree was fitted with 5 traps: 2 at the soil line and 3 arboreally. Two pitfall traps were installed by burying commercially available polystyrene drinking cups with a 9 cm diam flush with the soil surface.
spenceri is the most arboreally adapted of south-eastern Australian scincids (Brown 1986).
Interestingly, the gun's most obvious departure from other carbines of the period, the lack of a fore-end, like the similarly arboreally deprived Maynard, doesn't seem to have elicited much passion one way or the other.