WordReference Random House Unabridged Dictionary of American English © 2025
nas•tic
(nas′tik),USA pronunciation adj. [Bot.]
-nastic,
- Botanyof or showing sufficiently greater cellular force or growth on one side of an axis to change the form or position of the axis.
- Greek nast(ós) pressed close, stamped down, firm (equivalent. to nad- stem of nássein to press, squeeze + -tos past participle suffix, with dt
st) + -ic - 1900–10
-nastic,
- a combining form occurring in adjectives corresponding to nouns ending in -nasty: hyponastic.
- see nastic
'nastic' also found in these entries (note: many are not synonyms or translations):