Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
aphotic is an adjective meaning "lacking light; especially not reached by sunlight". It carries one recorded sense.
lacking light; especially not reached by sunlight
“the aphotic depths of the sea where no photosynthesis occurs”
Definitions, synonyms and semantic relations for aphotic come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.