Origin of nastic
Definition for nastic (2 of 2)
Origin of -nastic
Examples from the Web for nastic
The employment of the term 'nastic' is, however, convenient when used in a well-defined and restricted sense.
There is no line of demarcation between tropic and nastic movements.
No sharp distinction can therefore be made between the movements of growth and of variation, between tropic and nastic curvatures.