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nyctinasty
/ ˈnɪktɪˌnæstɪ /
noun
- botany a nastic movement, such as the closing of petals, that occurs in response to the alternation of day and night
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Derived Forms
- ˌnyctiˈnastic, adjective
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Word History and Origins
Origin of nyctinasty1
C20: from Greek nukt-, nux night + -nasty
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