Ἀτλαντικός

ή, όν, α, ον, ίδος
A. of Atlas, τέρμονες Ἀ. the pillars of Hercules, E. Hipp. 3, 1053; τὸ Ἀ. πέλαγος Pl. Ti. 24e, Arist. Pr. 946a29; ἡ Ἀ. θάλασσα Id. Mu. 392b22:—also Ἀτλάντειος, α, ον, Critias 18.5 D.:— fem. Ἀτλαντίς, ίδος, as Patron., Hes. Th. 938; title of work by Hellanicus (also Ἀτλαντιάς, Harp. s.v. Ὁμηρίδαι); θάλασσα ἡ Ἀ. καλουμένη Hdt. 1.202; ἡ Ἀ. νῆσος, a fabulous island in the far West, Pl. Ti. 25a, Str. 2.3.6.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project