nyctitropic

/nik-ti-trop-ik, -troh-pik/US // ˌnɪk tɪˈtrɒp ɪk, -ˈtroʊ pɪk //

嗜睡性

Definitions

adj.形容词 adjective

1
Botany.
- : tending to assume at or just before nightfall positions unlike those maintained during the day, as the leaves or flowers of certain plants.

One species of Phyllanthus takes up in sunshine the nyctitropic attitude of another species.
Both the petiole, and the terminal leaflet of this plant exhibit very marked nyctitropic movement.
The obscurities in the nyctitropic movement of plants arises from the presence of numerous complicating factors.
The description of this Nyctitropic Recorder will be given in the next paper.
The nyctitropic movement of plants affords another example of daily periodicity.