protoplasm [ proh-t uh-plaz- uhm ] SHOW IPA / ˈproʊ təˌplæz əm / PHONETIC RESPELLING noun Biology. (no longer in technical use) the colloidal and liquid substance of which cells are formed, excluding horny, chitinous, and other structural material; the cytoplasm and nucleus. Obsolete. the living matter of organisms regarded as the physical basis of life, having the ability to sense and conduct stimuli. QUIZZES QUIZ YOURSELF ON AFFECT VS. EFFECT!
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Origin of protoplasm
From the New Latin word
dating back to 1840–50. See
-plasm OTHER WORDS FROM protoplasm pro·to·plas·mic, pro·to·plas·mal, pro·to·plas·mat·ic [proh-toh-plaz- mat-ik], /ˌproʊ toʊ plæzˈmæt ɪk/, adjective in·ter·pro·to·plas·mic, adjective Words nearby protoplasm protophilic
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for protoplasm
He was not one of the little pieces of
protoplasm running along with the herd.
Let us suppose its first connection with vitality to be in the simplest form of animated matter—that of the
Ages ago, when we were amœbæ or little drops of
protoplasm, we had no eyes or nose or separate stomach for digesting food.
In these higher animals this
protoplasm is known as germplasm, that in body cells as somatoplasm. noun biology the living contents of a cell, differentiated into cytoplasm and nucleoplasm Derived forms of protoplasm protoplasmic, adjective Word Origin for protoplasm
C19: from New Latin, from
proto- + Greek plasma form
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
n. The complex, semifluid, translucent substance that constitutes the living matter of plant and animal cells and manifests the essential life functions of a cell. Composed of proteins, fats, and other molecules suspended in water, it includes the nucleus and cytoplasm. Other words from protoplasm pro′to•plas ( ′mic -plăz) ′mĭk adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
The semifluid, translucent substance that forms the living matter in all plant and animal cells. Composed of proteins, fats, and other substances suspended in water, it includes the cytoplasm and (in eukaryotes) the nucleus.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The jellylike material in a
cell, both inside and outside the nucleus, where the chemical reactions that support life take place.
The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.