seawater
UK: ˈsiːwɔːtə | US: ˈsiːwɔːtər
n. water from the sea or ocean, typically containing dissolved salts and minerals.
The word "seawater" is a straightforward compound of "sea" (Old English sǣ, meaning a large body of saltwater) and "water" (Old English wæter, referring to the liquid essential for life). The combination directly describes the natural substance found in oceans, retaining the original meanings of both morphemes. This transparent structure reflects the word’s functional and descriptive purpose in English.
The scientist analyzed the salinity of seawater samples.
Seawater corrodes metal faster than freshwater.
Drinking untreated seawater can lead to dehydration.
The aquarium uses filtered seawater for its marine exhibits.
Coastal plants have adapted to tolerate seawater spray.