We found one dictionary that defines the word photic zones:

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1. photic zones: Wiktionary

▸ Words similar to photic zones ▸ Usage examples for photic zones ▸ Idioms related to photic zones ▸ Wikipedia articles (New!) ▸ Words that often appear near photic zones ▸ Rhymes of photic zones ▸ Invented words related to photic zones