seawater
Etymology
From Middle English seewater, se water, from Old English sǣwæter (“seawater”), equivalent to sea + water. Cognate with Saterland Frisian Seewoater (“seawater”), West Frisian seewetter (“seawater”), Dutch zeewater (“seawater”), Icelandic sjóvatn (“seawater”).
adj
- Consisting of seawater.“The continual seawater splashes corroded our equipment”
- Associated in some way with seawater, or intended for dealing with seawater.“The sharks in the aquarium had to be kept in a seawater tank”
noun
- The saltwater of a sea or ocean.