semiarboreal

adj

1. (not-comparable)Of a creature, which sometimes dwells in trees.

   “Its large toes protruded laterally as do those of the semiarboreal peoples of Borneo, the Philippines and other remote regions where low types still persist. The countenance might have been that of a cross between Pithecanthropus, the Java ape-man, and a daughter of the Piltdown race of prehistoric Sussex.”