nyctitropism

/ nɪkˈtɪtrəˌpɪzəm; ˌnɪktɪˈtrɒpɪk /

noun

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

Derived Forms

• nyctitropic, adjective

Word History and Origins

Origin of nyctitropism¹

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

Example Sentences

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

From Project Gutenberg