Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.


A central, less viscous portion of the cytoplasm that is distinguishable in certain cells, especially motile cells.

en′do·plas′mic adj.


(Biology) cytology the inner cytoplasm in some cells, esp protozoa, which is more granular and fluid than the outer cytoplasm. See ectoplasm1
ˌendoˈplasmic adj


(ˈɛn dəˌplæz əm)

the inner portion of the cytoplasm of a cell. Compare ectoplasm (def. 1).
en`do•plas′mic, adj.


the inner part of the cytoplasm of a cell. Cf. ectoplasm. — endoplasmic, adj.
See also: Cells
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.endoplasm - the inner portion of the cytoplasm of a cellendoplasm - the inner portion of the cytoplasm of a cell
cytol, cytoplasm - the protoplasm of a cell excluding the nucleus; is full of proteins that control cell metabolism
References in periodicals archive ?
Recent studies found that mutant COMP proteins affect not only COMP secretion but also type IX collagen and MATN3 are selectively sequestered resulting in retention of all the three proteins in the rough endoplasm of PSACH and MED chondrocytes, leading to downstream effects of abnormal matrix and chondrocyte death.
The rough endoplasm reticulum cisternae and organelle was very well developed and the cellular membranes of oocyte and granulosa cells were in close connection.
In a long living cell of green algae, Nitella or Chara, the thin layer of the endoplasm is observable streaming very fast at a peed of ~50 [micro]m/s just beneath the cell wall by light microscopy.