immersion

US /ɪˈmə:ʒən, -ʃən/

UK /ɪˈmɜ:ʒən, -ʃən/

B1
n. (u.)Uncountable NounComplete mental attention, e.g. when reading
A good book puts you in a state of immersion
n. (u.)Uncountable NounThe act of putting something completely under the surface of a liquid; the state of being completely under the surface of a liquid.
The immersion of the metal in the acid caused a violent reaction.
n. (u.)Uncountable NounA method of teaching a foreign language by surrounding students with the language.
Language immersion programs are very effective for learning a new language.
n. (u.)Uncountable NounA religious ceremony in which someone is covered completely in water.
Baptism by immersion is practiced in many Christian denominations.
n. (u.)Uncountable NounThe use of a liquid between a lens and an object to improve the resolution of a microscope.
Immersion objectives are used in microscopy to increase resolution.

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