nyctitropism


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nyctitropism

(nɪkˈtɪtrəˌpɪzəm)
n
(Botany) a tendency of some plant parts to assume positions at night that are different from their daytime positions
[C19: nyct-, from Greek nukt-, nux night + -tropism]
nyctitropic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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Other words spelled in the competition were recidivist, nyctitropism, roulade, and limuloid.