• (n.) The important living portion of protoplasm, considered a chemical substance of the highest elaboration. Germ plasm and idioplasm are forms of plasmogen.
(plaz´mo-jen) the more vital or essential part of the cytoplasm.
Plas'mo·gen noun [ Plasma + -gen .] (Biol.) The important living portion of protoplasm, considered a chemical substance of the highest elaboration. Germ plasm and idioplasm are forms of plasmogen. 
Type: Term Pronunciation: plaz′mō-jen Synonyms: protoplasm