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[sahy-tuh-plaz-uh m] /ˈsaɪ təˌplæz əm/
noun, Cell Biology.
the cell substance between the cell membrane and the nucleus, containing the cytosol, organelles, cytoskeleton, and various particles.
Origin of cytoplasm
1870-75; cyto- + -plasm
Related forms
cytoplasmic, adjective
cytoplasmically, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for cytoplasmic


the protoplasm of a cell contained within the cell membrane but excluding the nucleus: contains organelles, vesicles, and other inclusions
Derived Forms
cytoplasmic, 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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Word Origin and History for cytoplasmic



1874, from cyto- + -plasm.

Online Etymology Dictionary, © 2010 Douglas Harper
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cytoplasmic in Medicine

cytoplasm cy·to·plasm (sī'tə-plāz'əm)
The protoplasm outside a cell nucleus.

cy'to·plas'mic (-plāz'mĭk) 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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cytoplasmic in Science
The jellylike material that makes up much of a cell inside the cell membrane, and, in eukaryotic cells, surrounds the nucleus. The organelles of eukaryotic cells, such as mitochondria, the endoplasmic reticulum, and (in green plants) chloroplasts, are contained in the cytoplasm. The cytoplasm and the nucleus make up the cell's protoplasm. See more at cell.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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cytoplasmic in Culture
cytoplasm [(seye-tuh-plaz-uhm)]

The material within a biological cell that is not contained in the nucleus or other organelles.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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