Main Entry: im·mer·sion

Pronunciation: \i-ˈmər-zhən, -shən\

Function: noun

Date: 15th century

: the act of immersing or the state of being immersed: as a : baptism by complete submersion of the person in water b : absorbing involvement <immersion in politics> c : instruction based on extensive exposure to surroundings or conditions that are native or pertinent to the object of study; especially : foreign language instruction in which only the language being taught is used <learned French through immersion>