aphotic

/eɪˈfoʊtɪk/
adjective
  1. Having no light; describing a zone in a body of water where sunlight does not reach.
    • Scientists used special equipment to explore the aphotic region of the lake.
    • Creatures living in the aphotic depths have adapted to complete darkness.
    • The aphotic zone of the ocean begins at about 1,000 meters deep.
Antonyms
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