Meaning of circumnutate

cir•cum•nu•tate

Pronunciation: (sûr"kum-n'tāt, -ny'-), [key]
— -tat•ed, -tat•ing.
  1. (of the apex of a stem or other growing part of a plant) to bend or move around in an irregular circular or elliptical path.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.