English Lexicon

Epipelagic

/ˌɛp.i.pəˈlædʒ.ɪk/
adjectivenounCEFR C2 (Proficient)Top #45000 frequency
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Comprehensive Definitions & Senses

2 senses
As adjective
  1. 1

    Relating to the upper layer of the ocean zone that receives sufficient sunlight for photosynthesis, typically extending from the surface down to about 200 meters.

    "Many species of tuna and dolphins inhabit the warm, sunlit waters of the epipelagic zone."
As noun
  1. 1

    The epipelagic zone itself; the upper photosynthetic layer of the ocean.

    "Light intensity drops off rapidly as you descend through the epipelagic into the mesopelagic."

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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from the Greek prefix 'epi-' meaning 'upon' or 'over', combined with 'pelagic', from the Greek 'pelagos' meaning 'open sea' or 'ocean'. Coined in oceanography during the 20th century to designate the uppermost layer of the ocean.

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