/ Dictionary / Index P phyllotaxy: Meaning and Definition of Find definitions for: phyl•lo•tax•y Pronunciation: (fil'u-tak"sē), [key] — pl. -tax•ies. the arrangement of leaves on a stem or axis. the study of such arrangement. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. phyllotaxis -phyllous Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language