nastic movement


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nastic movement

(ˈnæstɪk)
n
(Botany) a response of plant parts that is independent of the direction of the external stimulus, such as the opening of buds caused by an alteration in light intensity
[C19 nastic, from Greek nastos close-packed, from nassein to press down]
References in periodicals archive ?
Nastic movements are those made in response to some stimulus but are not oriented relative to the direction of the stimulus.
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