<biology> The inner granular layer of protoplasm in a developing ovum. ... Origin: Ento- + Gr. Anything formed. ... (30 Mar 1998) ... Found on http://www.encyclo.co.uk/local/20973
En'to·plasm noun [ Ento- + Greek ... anything formed.] (Biol.) (a) The inner granular layer of protoplasm in a developing ovum. (b) Endosarc. Found on http://www.encyclo.co.uk/webster/E/49