the GNU version of the Collaborative International Dictionary of English
n. The state of being arborescent; the resemblance to a tree in minerals, or crystallizations, or groups of crystals in that form.
The Century Dictionary and Cyclopedia
n. The state of being arborescent.
n. Something, as a mineral or a group of crystals, having the figure of a tree.
Word Usage
"An artist can transfer the acacia to canvas in a series of green and white dots and blurs, but he does not achieve all the beauty, for beneath the tree's arborescence is the fineness of an etching."