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

• hashed browns
• hasheesh
• Hashemite Kingdom of Jordan
• Hashimoto's disease
• hashish
• hashmark
• Hasid
• Hasidic
• Hasidim
• Hasidism
• haslet
• hasn't
• hasp
• Hassam
• Hassel
• Hassid
• Hassidic
• Hassidim
• Hassidism
• hassium
• hassle
• hassock
• hast
• hastate
• hastate leaf