/ Thesaurus / Y Synonyms of youth on age Find synonyms for: Noun1. pickaback plant, piggyback plant, youth-on-age, Tolmiea menziesii, herb, herbaceous plantusage: vigorous perennial herb with flowers in erect racemes and having young plants develop at the junction of a leaf blade and the leafstalkWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language