distillation
nounUK /ˌdɪstɪˈleɪʃən/
US /ˌdɪstəˈleɪʃən/
Distillation is a way to separate liquids by heating them so one turns into gas and then cools back into liquid.
The factory uses distillation to turn crude oil into gasoline.
OTHER MEANINGS
2. The process of making a liquid stronger or purer, especially alcohol, by heating and cooling it.
Whiskey is made through distillation.
3. The act of getting the most important ideas or meaning from something.
Her book is a distillation of years of research.
4. The process of removing salt from seawater to make it drinkable.
Distillation turns seawater into fresh water.