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photic

Pronunciation: /ˈfəʊtɪk/
Definition of photic

adjective

technical
  • relating to light, especially as an agent of chemical change or physiological response.
  • Ecology denoting the layers of the ocean reached by sufficient sunlight to allow plant growth: an average depth for the photic zone is about 100 m

photic in other Oxford dictionaries

Definition of photic in the US English dictionary
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