Bible Dictionaries
Nyctitropism
Webster's Dictionary
(n.) The tendency of certain plant organs, as leaves, to assume special "sleeping" positions or make curvatures under the influence of darkness. It is well illustrated in the leaflets of clover and other leguminous plants.
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Bibliography Information
Webster, Noah. Entry for 'Nyctitropism'. Noah Webster's American Dictionary. https://www.studylight.org/dictionaries/eng/web/n/nyctitropism.html. 1828.