English edit

Etymology edit

From nyct- +‎ -i- +‎ -nasty.

Noun edit

nyctinasty (uncountable)

  1. (botany) The movement of leaves or petals in response to darkness; the closing of a flower at night.
    Synonyms: nyctinastism, nyctitropism

Derived terms edit

Translations edit

See also edit

References edit

  • Oxford English Dictionary, 2nd ed., 1989.