euphotic

[ yoo-foh-tik ]
/ yuˈfoʊ tɪk /

adjective

noting or pertaining to the layer or zone of sea water that receives enough sunlight for photosynthesis to occur, varying greatly with season and latitude, from 0 to 1,200 feet (0–360 meters).

QUIZZES

DISCOVER THE INFLUENCE OF PORTUGUESE ON ENGLISH VIA THIS QUIZ!

We’ve gathered some interesting words donated to English from Portuguese … as well as some that just don’t translate at all. Do you know what they mean?
Question 1 of 11
Which of the following animal names traces its immediate origin to Portuguese?

Origin of euphotic

First recorded in 1905–10; eu- + photic (def. 2)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for euphotic

euphotic
/ (juːˈfəʊtɪk, -ˈfɒt-) /

adjective

ecology denoting or relating to the uppermost part of a sea or lake down to about 100 metres depth, which receives enough light to enable photosynthesis to take place

Word Origin for euphotic

C20: from eu- + photic
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for euphotic

euphotic
[ yōō-fŏtĭk ]

See photic.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.