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Thesaurus: nyctitropism

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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  1. 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.
  2. The tendency of certain plant organs, as leaves, to assumespecial "sleeping" positions or make curvatures under the influenceof darkness. It is well illustrated in the leaflets of clover andother leguminous plants.