/ Dictionary / Index P piggyback plant: Meaning and Definition of Find definitions for: pig'gyback plant" Pronunciation: [key] a plant, Tolmiea menziesii, of the saxifrage family, native to western North America, that produces new plants at the base of its broad, hairy leaves and that is popular as a houseplant. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. piggyback car piggy bank 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