# nyctinasty

> English word · Noun

## Definitions
1. The movement of leaves or petals in response to darkness; the closing of a flower at night.

## Etymology
From nycti- + -nasty. By surface analysis, nycti- + -nast + -y.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/nyctinasty