APHOTIC
aphotic
(adjective) lacking light; especially not reached by sunlight; “the aphotic depths of the sea where no photosynthesis occurs”
Source: WordNet® 3.1
Etymology
Adjective
aphotic (comparative more aphotic, superlative most aphotic)
Having no light, especially no sunlight; specifically (biology, oceanography) describing that part of deep lakes and oceans where less than one per cent of sunlight penetrates and where photosynthesis is not possible.
Antonym: photic
Coordinate terms
• disphotic
• euphotic
Anagrams
• patchoi
Source: Wiktionary
A*pho"tic (a*fo"tik), a. [Gr. 'a`fws, 'a`fwtos.]
Definition: Without light.
Source: Webster’s Unabridged Dictionary 1913 Edition