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nyctinasty

/ ˈnɪktɪˌnæstɪ /

noun

  1. botany a nastic movement, such as the closing of petals, that occurs in response to the alternation of day and night
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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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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Example Sentences

ABC Buffalo reports that Fuller, who correctly spelled the words "nyctinasty" and "tapas" onstage in National Harbor, Maryland, was disqualified from the finals due to her performance on a written test.

From Time

Her word was “nyctinasty,” the movement of plants in response to the onset of darkness.

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nyctanthousnyctitropic