
• (a.) Turning or bending at night into special positions. • (a.) Turning or bending at night into special positions.
Found on
http://thinkexist.com/dictionary/meaning/nyctitropic/
Nyc`ti·trop'ic adjective [ From Greek ..., ..., night + ... turning.]
(Botany) Turning or bending at night into special positions. » Nyctitropic movements of plants usually consist in a folding or drooping of the leaves, the advantage being in lessening the radiation of heat.
Found on
http://www.encyclo.co.uk/webster/N/42

tending to assume at or just before nightfall positions unlike those maintained during the day, as the leaves or flowers of certain plants.
Found on
https://www.infoplease.com/dictionary/nyctitropic
No exact match found.