Meanings
nouncross sea (plural cross seas)
plural cross seas
- nauticalA (dangerous) sea with two wave systems traveling at oblique angles, due to the wind over it shifting direction or the waves of two storm systems meeting.
Origin
The swells of the waves, when they meet at right angles, form cross shapes.
Full word history & related roots →Translations
Finnish ristiaallokko
- ristiaallokkosea
German Kreuzsee
- Kreuzseesea
Cite this entry
APA
cross sea. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/cross%20sea
MLA
“cross sea.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/cross%20sea. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “cross sea,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/cross%20sea.
Source: cross sea on Wiktionary, CC BY-SA 4.0.