1. The tendency of certain plant organs, as leaves, to assume special "sleeping" positions or make curl up under the influence of darkness

Derived forms: nyctitropisms

• disarranged
• disarrangement
• disarray
• disarrayed
• disarticulate
• disassemble
• disassembly
• disassociate
• disassociation
• disassortative mating
• disaster
• disaster area
• disastrous
• disastrously
• disavow
• disavowable
• disavowal
• disband
• disbandment
• disbar
• disbarment
• disbelief
• disbelieve
• disbeliever
• disbelieving