ENDOPLASM By N., Pam M.S. - April 7, 2013 The less dense cytoplasm filling the bulk of the cell. Compare ectoplasm. ENDOPLASM: "The endoplasm is less dense than the cytoplasm." Related Psychology Terms ECTOPLASM GERM PLASM VITREOUS HUMOR CELL DIVISION NUCLEOPLASM NUCLEUS ION CHANNEL TYPE III CELL AUTOCRINE CELL BODY Cite this page: N., Pam M.S., "ENDOPLASM," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/endoplasm/ (accessed September 29, 2020).