diatropism: Meaning and Definition of

di•at•ro•pism

Pronunciation: (dī-a'tru-piz"um), [key]
— n. Bot.
  1. the tendency of some plant organs to take a transverse position to the line of action of an outside stimulus.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.