• (imp. & p. p.) of Immerse • (p. p. & a.) Growing wholly under water. • (p. p. & a.) Deeply plunged into anything, especially a fluid. • (p. p. & a.) Deeply occupied; engrossed; entangled. Found on http://thinkexist.com/dictionary/meaning/immersed/
Im·mersed' past participle & adjective 1. Deeply plunged into anything, especially a fluid. 2. Deeply occupied; engrossed; entangled. 3. (Botany) Growing wholly under water. Gray. Found on http://www.encyclo.co.uk/webster/I/13
plunged or sunk in or as if in a liquid. · somewhat or wholly sunk in the surrounding parts, as an organ. · growing under water. Found on https://www.infoplease.com/dictionary/immersed