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# seawater

«seawater» in Mova's school dictionary: **The salty water of the sea or the ocean** — its meaning for a pupil, its sense in the lessons and examples, with 5 sentences of Mova's corpora that use it.

### part of speech

noun (seawater — uncountable); also written "sea water"

### meaning for a pupil

The salty water of the sea or the ocean. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/seawater/#m1)

### sense in the lessons

In science, seawater is salty because it has dissolved salts, mostly sodium chloride (common salt), washed from rocks by rivers over millions of years; about 35 grams of salt in every litre. You cannot drink seawater: it makes you thirstier and is harmful. Salt can be got from seawater by evaporation, which is how sea salt is made. Seawater is denser than fresh water, so it is easier to float in. In safety, seawater has currents and tides; swim between the flags where lifeguards watch. Phrases: "drink seawater", "a bucket of seawater", "seawater evaporates".

### examples

- Never drink seawater; it is too salty. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/seawater/#x1)
- We left seawater in a dish and the sun dried it into salt crystals. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/seawater/#x2)
- Seawater tastes salty because of dissolved salts. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/seawater/#x3)
- It is easier to float in seawater than in a pool. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/seawater/#x4)
- The crabs lived in a rock pool of seawater. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/seawater/#x5)
- Seawater makes metal rust faster. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/seawater/#x6)
- About 97 out of every 100 litres of Earth's water is seawater. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/seawater/#x7)
- We filled our bucket with seawater to keep the shells wet. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/seawater/#x8)
- It had something of the taste of seawater, certainly, although it had been drawn from the well outside. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/seawater/#x9)

### note

Uncountable: some seawater, not "a seawater". Written as one word or two (sea water). "Salt water" and "fresh water" (rivers, lakes, rain) are opposites. Myth: seawater cannot quench thirst; drinking it makes dehydration worse.

### In the corpora

- [One drop of seawater can hold millions of viruses and bacteria and many plankton.](https://md.mova.elamur.ai/free/en/corpora/school/biology/259-the-microscopic-world-tardigrades-mites-plankton-and-other-tiny-creatures/18/)
- [Ships and some dry countries make drinking water from seawater by distillation and other methods.](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/8-separating-mixtures/13/)
- [A submarine fills tanks with seawater to sink and blows them out with air to rise.](https://md.mova.elamur.ai/free/en/corpora/school/physics/12-ice-submarines-and-balloons/7/)
- [Every 10 metres of seawater presses as hard as the whole air above us, so divers' ears hurt as they go deeper.](https://md.mova.elamur.ai/free/en/corpora/school/physics/13-water-safety-and-the-ocean/5/)
- [Big nuclear submarines make their own oxygen from seawater using electricity.](https://md.mova.elamur.ai/free/en/corpora/school/technology/24-ships-ports-and-submarines/12/)

### Trees and pragmatics

[Every meaning and example of «seawater» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/seawater/), each sentence with its dependency tree and frames.