Dictionary

nocturnal

adjective noc·tur·nal \näk-ˈtər-nəl\

: active mainly during the night

: happening at night

Full Definition of NOCTURNAL

1
:  of, relating to, or occurring in the night <a nocturnal journey>
2
:  active at night <a nocturnal predator>
noc·tur·nal·ly \-nəl-ē\ adverb

Examples of NOCTURNAL

  1. <he bought a new telescope so he could pursue his favorite nocturnal hobby of astronomy>

Origin of NOCTURNAL

Middle English, from Anglo-French or Late Latin; Anglo-French nocturnel, from Late Latin nocturnalis, from Latin nocturnus of night, nocturnal, from noct-, nox night
First Known Use: 15th century

Related to NOCTURNAL

Synonyms
night, nightly, nighttime
Antonyms
daily, diurnal

Other Ecology Terms

Malthusian, anthropogenic, biomass, carbon footprint, crepuscular, niche, sere, symbiosis, taiga, tundra

nocturnal

adjective noc·tur·nal \näk-ˈtərn-əl\   (Medical Dictionary)

Medical Definition of NOCTURNAL

1
:  of, relating to, or occurring at night <nocturnal myoclonus>
2
:  characterized by nocturnal activity <a nocturnal form of filariasis>

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May 30, 2015
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