seawater

Meanings

1. 1
   noun

   The salty water of the sea or ocean.

   Seawater is too salty to drink.

2. 2
   adj

   Made of or relating to seawater.

   The sharks were kept in a large seawater tank.

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”).

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