The Collaborative International Dictionary of English v.0.48:

Immerse \Im*merse"\, v. t. [imp. & p. p. Immersed; p. pr. &
   vb. n. Immersing.]
   1. To plunge into anything that surrounds or covers,
      especially into a fluid; to dip; to sink; to bury; to
      immerge.
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            Deep immersed beneath its whirling wave. --J Warton.
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            More than a mile immersed within the wood. --Dryden.
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   2. To baptize by immersion.
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   3. To engage deeply; to engross the attention of; to involve;
      to overhelm.
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            The queen immersed in such a trance.  --Tennyson.
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            It is impossible to have a lively hope in another
            life, and yet be deeply immersed inn the enjoyments
            of this.                              --Atterbury.
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