Meaning of apheliotropism

a•phe•li•ot•ro•pism

Pronunciation: (u-fē"lē-o'tru-piz"um, ap-hē"lē-), [key]
— n.
  1. apheliotropic tendency or type of growth.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.