nyctinasty


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nyc·ti·nas·ty

 (nĭk′tĭ-năs′tē)
n.
A diurnal movement of plant parts, such as the opening during the day and closing during the night of certain flowers.

[Greek nux, nukt-, night; see nekw-t- in Indo-European roots + -nasty.]

nyc′ti·nas′tic (-tĭk) adj.

nyctinasty

(ˈnɪktɪˌnæstɪ)
n
(Botany) botany a nastic movement, such as the closing of petals, that occurs in response to the alternation of day and night
[C20: from Greek nukt-, nux night + -nasty]
ˌnyctiˈnastic adj
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References in periodicals archive ?
Phytochrome controlled nyctinasty in Albizzia julibrissin.