euphotic zone

American  

[yoo-foh-tik] / juˈfoʊ tɪk /

noun

Oceanography.

1. 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).

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Etymology

Origin of euphotic zone

First recorded in 1960–65; eu- + photic

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