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photic zone

noun, Biology
1.
the upper layer of a body of water delineated by the depth to which enough sunlight can penetrate to permit photosynthesis.
Origin of photic zone
1970-1975
1970-75
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Contemporary definitions for photic zone
noun

the upper part of a body of water that is exposed to sunlight and permits photosynthesis; also called euphotic zone

Examples

The photic zone is usually less than 100 meters in depth.

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Difficulty index for photic zone

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Word Value for photic

13
14
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