Definition of nyctitropism in English:

nyctitropism

noun

Botany
  • Nyctinasty.

Origin

Late 19th century; earliest use found in Charles Darwin (1809–1882), naturalist, geologist, and originator of the theory of natural selection. From nycti- + -tropism.

Pronunciation

nyctitropism

/ˌnɪktɪˈtrəʊpɪz(ə)m/