| 单词 | nyctinasty | 
| 释义 | nyc·ti·nas·ty    (nĭktĭ-năs′tē)n.  A diurnal movement of plant parts, such as the opening during the day and closing during the night of certain flowers. [Greek nux, nukt-, night; see  nekw-t- in the Appendix of Indo-European roots + -NASTY.] nyc′ti·nastic (-tĭk) adj.  | 
	
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