epipelagic
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ep·i·pe·lag·ic
(ĕp′ə-pə-lăj′ĭk)adj.
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).
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
epipelagic
(ˌɛpɪpəˈlædʒɪk)adj
(Biology) of, relating to, or inhabiting the upper zone of the ocean from just below the surface to approximately 100 metres deep
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ep•i•pe•lag•ic
(ˌɛp i pəˈlædʒ ɪk)adj.
of or pertaining to the stratum of the oceanic zone where enough light is present for photosynthesis to occur.
[1935–40]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.