Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Relating to or inhabiting the uppermost layer of the water column of the open ocean, into which enough sunlight enters for photosynthesis to take place, extending in clear waters to a depth of about 200 meters (656 feet).

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Of, pertaining to, or inhabiting the water from the surface of the sea down to 200 metres.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

epi- +‎ pelagic

Examples

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