Dictionary entry

διθάλασσος

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

*† διθάλασσος, -ον

(δις, θύλασσα);

1. divided into two seas (as the Euxine, Strab., ii, 5²²).

2. dividing the sea: τόπον δ., a tongue of land, or reef, running out into the sea: Ac 27:41.†