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nyctinasty

British

/ ˈnɪktɪˌnæstɪ /

noun

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

Other Word Forms

Derived Forms

nyctinastic

adjective

Etymology

Origin of nyctinasty

C20: from Greek nukt-, nux night + _-nasty

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023