/ Dictionary / Index A arborization: Meaning and Definition of Find definitions for: ar•bor•i•za•tion Pronunciation: (är"bur-u-zā'shun), [key] — n. a treelike appearance, as in certain minerals or fossils. the branchlike appearance characteristic of certain nerve-cell outgrowths. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. arborist arborous Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language