NOCTURNAL

describes activity which occurring's normally during the dark period of a daily cycle.

NOCTURNAL: "Some species of bat for example are nocturnal creatures who are only active at night."
Cite this page: N., Pam M.S., "NOCTURNAL," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/nocturnal/ (accessed July 12, 2020).
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