immersion
nounUK /ɪˈmɜːʃən/
US /ɪˈmɜːrʒən/
The act of putting something completely into a liquid.
The immersion of the vegetables in cold water kept them fresh.
OTHER MEANINGS
2. A way of learning a language by living where it is spoken and using it all the time.
She learned Spanish through total immersion in Madrid.
3. Complete attention to an activity so that you forget everything else.
His immersion in the video game made him miss dinner.
4. A machine or device that heats a liquid using a part placed inside it.
We used an immersion heater to warm the water for tea.