aphotic
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aphotic — (adj.) untouched by sunlight, lightless (in reference to deep sea regions), 1903, Modern Latin, from Gk. a not, without (see A (Cf. a ) (3)) + phos (gen. photos) light, related to phainein to show, to bring to light (see PHANTASM (Cf. phantasm))… … Etymology dictionary
aphotic — [ā fōt′ik] adj. [ A 2 + PHOTIC] without light; specif., pertaining to that part (aphotic zone) of the ocean below a depth of c. 100 m ( c. 328 ft) which does not receive sufficient sunlight for photosynthesis: see EUPHOTIC … English World dictionary
Aphotic — A*pho tic ([.a]*f[=o] t[i^]k), a. [Gr. a fws, a fwtos.] Without light. [Webster 1913 Suppl.] … The Collaborative International Dictionary of English
aphotic — /əˈfɒtɪk/ (say uh fotik) adjective 1. without light. 2. of or relating to a plant growing in the aphotic region. {a 6 + photic} …
aphotic — adjective lacking light; especially not reached by sunlight the aphotic depths of the sea where no photosynthesis occurs • Similar to: ↑dark … Useful english dictionary
Aphotic region — (Phytogeog.) A depth of water so great that only those organisms can exist that do not assimilate. [Webster 1913 Suppl.] || … The Collaborative International Dictionary of English
Aphotic zone — The aphotic zone (aphotic from Greek prefix polytonic|ἀ + polytonic|φῶς without light ) is the portion of a lake or ocean where there is little or no sunlight. It is formally defined as the depths beyond which less than 1% of sunlight penetrates … Wikipedia
aphotic zone — afotinė zona statusas T sritis ekologija ir aplinkotyra apibrėžtis Neapšviestas vandens sluoksnis, kuriame negalima efektyvi fotosintezė. atitikmenys: angl. aphotic zone vok. aphotische Tiefenstufe, f rus. афотическая зона, f; лишенная света зона … Ekologijos terminų aiškinamasis žodynas
aphotic — adjective Date: circa 1900 being the deep zone of an ocean or lake receiving too little light to permit photosynthesis … New Collegiate Dictionary
aphotic — areas never reached by natural light in the deep ocean (deeper than about 800 metres). No photosynthesis occurs … Dictionary of ichthyology
aphotic — /ay foh tik/, adj. lightless; dark. [1900 05; A 6 + PHOTIC] * * * … Universalium
