euphotic zone

[yoo-foh-tik]

noun Oceanography.

the layer of sea water that receives enough sunlight for photosynthesis to occur: it varies greatly with season and latitude, from 0 to 1200 ft. (0–360 m).

Origin of euphotic zone

First recorded in 1960–65; eu- + photic

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018