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[en-duh-plaz-uh m] /ˈɛn dəˌplæz əm/
noun, Cell Biology
the inner portion of the cytoplasm of a cell.
Compare ectoplasm (def 1).
Origin of endoplasm
1880-85; endo- + -plasm
Related forms
endoplasmic, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for endoplasmic
  • The cancer cell's pink mitochondria and gold endoplasmic reticulum--a network of vesicles and sacs--swirl around a dark nucleus.
  • Once there, it gets shuttled from one structure to another until it reaches the endoplasmic reticulum, where ribosomes live.
British Dictionary definitions for endoplasmic


(cytology) the inner cytoplasm in some cells, esp protozoa, which is more granular and fluid than the outer cytoplasm See ectoplasm (sense 1)
Derived Forms
endoplasmic, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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endoplasmic in Medicine

endoplasm en·do·plasm (ěn'də-plāz'əm)
A central, less viscous portion of the cytoplasm that is distinguishable in certain cells, especially motile cells and protozoa.

en'do·plas'mic adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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