
• (n.) The successive bowing or bending in different directions of the growing tip of the stems of many plants, especially seen in climbing plants.
Found on
http://thinkexist.com/dictionary/meaning/circumnutation/
Cir`cum·nu·ta'tion noun (Botany) The successive bowing or bending in different directions of the growing tip of the stems of many plants, especially seen in climbing plants.
Found on
http://www.encyclo.co.uk/webster/C/82

Circumnutation is a name given by Charles Darwin to the continuous motion of every growing part of every plant, in which it describes irregular elliptical or oval figures. The apex of the stem, for instance, after pointing in one direction, moves round until it points in the opposite direction, and so on continuously.
Found on
http://www.probertencyclopaedia.com/browse/BCA.HTM
No exact match found.