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photic zone
noun
Biology
.
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
First recorded in 1970–75
Words nearby photic zone
phot
,
phot-
,
phot.
,
photalgia
,
photic
,
photic zone
,
photics
,
photinia
,
photism
,
photius
,
photo