If something is nocturnal , it belongs to or is active at night . That includes vampires, owls that like to hunt by moonlight, and that roommate who stays up playing video games until the wee hours of the morning. nocturnal (comparative more nocturnal , superlative most nocturnal ) (of a person, creature, group, or species) Primarily active during the night . Master the word " NOCTURNAL " in English: definitions, translations, synonyms, pronunciations, examples, and grammar insights - all in one complete resource. Explore the nocturnal definition , etymology, and significance in biodiversity. Discover facts about night -active species.
