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nyct(o)-

Also nycti‑

Night.

Greek nux, nukt‑, night.

Nyctalopia (Greek alaos, blind, ōps, eye) is the inability to see in dim light or at night; nyctophobia is an extreme or irrational fear of the night or of darkness; nyctinastic (Greek nastos, pressed) refers to the periodic movement of flowers or leaves caused by nightly changes in light intensity or temperature.

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