/ Thesaurus / H Synonyms of hairy root Find synonyms for: Noun1. hairy root, crown gallusage: a phase of crown gall (especially in apples) during which there is abnormal development of fine fibrous rootsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language