Met`en·so`ma·to'sis noun [ Latin , a change of body (by the soul), from Greek ....] (Biol.) The assimilation by one body or organism of the elements of another. 
<biology> The assimilation by one body or organism of the elements of another. ... Origin: L, a change of body (by the soul), fr. Gr. ... Source: Websters Dictionary ... (01 Mar 1998) ... 
• (n.) The assimilation by one body or organism of the elements of another.
movement of soul into new body before or after death