nyctitropic

[ nik-ti-trop-ik, -troh-pik ]

adjective

, Botany.

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

Other Words From

• nyc·tit·ro·pism [nik-, ti, -tr, uh, -piz-, uh, m], noun

Word History and Origins

Origin of nyctitropic¹

First recorded in 1875–80; nycti- + -tropic

Example Sentences

One species of Phyllanthus takes up in sunshine the nyctitropic attitude of another species.

From Project Gutenberg

Both the petiole, and the terminal leaflet of this plant exhibit very marked nyctitropic movement.

From Project Gutenberg

The obscurities in the nyctitropic movement of plants arises from the presence of numerous complicating factors.

From Project Gutenberg

The description of this Nyctitropic Recorder will be given in the next paper.

From Project Gutenberg

The nyctitropic movement of plants affords another example of daily periodicity.

From Project Gutenberg