/ Dictionary / Index P plantar reflex: Meaning and Definition of Find definitions for: plan'tar re"flex Pronunciation: [key] a normal reflex flexion of the toes, esp. in persons above one year of age, resulting from stroking the sole of the foot. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. plantar plantation Related Content Daily Word Quiz: exemplary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language