### immersion

• n. 沉浸；陷入；专心
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immersion (n.)
mid-15c., from Late Latin immersionem (nominative immersio), noun of action from past participle stem of immergere, from assimilated form of in- "into, in, on, upon" (see in- (2)) + Latin mergere "plunge, dip" (see merge). Meaning "absorption in some interest or situation" is from 1640s. As a method of teaching a foreign language, it is from 1965, trademarked by the Berlitz company.
1. The wood had become swollen from prolonged immersion.

2. Immersion in cold water resulted in rapid loss of heat.

3. The dirt on the bottom of the bath didn't encourage total immersion.

4. It is like the sense of chill that follows immersion of the hand in a volatile liquid.

5. This can be eliminated by placing the model in an immersion cell.