1. 
[syn: arboreal, arboreous, arborescent, arboresque, arboriform, dendriform, dendroid, dendroidal, treelike, tree-shaped]
The Collaborative International Dictionary of English v.0.48:
Dendroid \Den"droid\, Dendroidal \Den*droid"al\, a. [Gr. ?
   treelike; de`ndron tree + e'i^dos form: cf. F. dendro["i]de.]
   Resembling a shrub or tree in form; treelike; branching.
   Syn: arboreal, arboreous, arborescent, arboresque,
        arboriform, dendriform, treelike, tree-shaped.
        [1913 Webster]
WordNet (r) 3.0 (2006):
dendroidal
    adj 1: resembling a tree in form and branching structure;
           "arborescent coral found off the coast of Bermuda";
           "dendriform sponges" [syn: arboreal, arboreous,
           arborescent, arboresque, arboriform, dendriform,
           dendroid, dendroidal, treelike, tree-shaped]