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nyctitropism

/ ˌnɪktɪˈtrɒpɪk; nɪkˈtɪtrəˌpɪzəm /

noun

  1. a tendency of some plant parts to assume positions at night that are different from their daytime positions
“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

  • nyctitropic, adjective
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Word History and Origins

Origin of nyctitropism1

C19: nyct-, from Greek nukt-, nux night + -tropism
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Example Sentences

This will explain why attempts at explanation of the phenomenon of nyctitropism had hitherto proved so baffling.

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