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nyctitropism

noun
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nyc·​tit·​ro·​pism | \ nikˈti‧trəˌpizəm \
plural -s

Definition of nyctitropism

: a sleep movement in plants characterized by response to a stimulus that is greatest or exclusively from one direction — compare nyctinasty

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History and Etymology for nyctitropism

International Scientific Vocabulary nyct- + -tropism

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“Nyctitropism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nyctitropism. Accessed 28 Feb. 2021.

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