1. To plunge into anything that surrounds or covers, especially into a fluid; to dip; to sink; to bury; to immerge. Deep immersed beneath its whirling wave. (j Warton) More than a mile immersed within the wood. (Dryden)
2. To baptize by immersion.
3. To engage deeply; to engross the attention of; to involve; to overhelm. The queen immersed in such a trance. (Tennyson) It is impossible to have a lively hope in another life, and yet be deeply immersed inn the enjoyments of this. (Atterbury)
Origin: Immersed; Immersing.