immersion
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(i-mĕr′zhŏn, shŏn)

[L. immersio, a dip into]
1. Placing a body under water or other fluid.
2. In microscopy, the act of immersing the objective (then called an immersion lens) in water or oil, preventing total reflection of rays falling obliquely upon peripheral portions of the objective.
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(i-mĕr′zhŏn, shŏn)

[L. immersio, a dip into]
1. Placing a body under water or other fluid.
2. In microscopy, the act of immersing the objective (then called an immersion lens) in water or oil, preventing total reflection of rays falling obliquely upon peripheral portions of the objective.
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