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protoplasm

noun
pro·​to·​plasm | \ ˈprō-tə-ˌpla-zəm How to pronounce protoplasm (audio) \

Definition of protoplasm

1 : the organized colloidal complex of organic and inorganic substances (such as proteins and water) that constitutes the living nucleus, cytoplasm, plastids, and mitochondria of the cell
2 : cytoplasm
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Other Words from protoplasm

protoplasmic \ ˌprō-​tə-​ˈplaz-​mik How to pronounce protoplasmic (audio) \ adjective

Did You Know?

After the word protoplasm was coined in the mid-19th century for the jellylike material that is the main substance of a cell, it began to be used widely, especially by scientists and others who imagined that the first life-forms must have arisen out of a great seething protoplasmic soup. Since protoplasm includes all the cell's living material, inside and outside the nucleus, it is a less useful scientific word today than more precise terms such as cytoplasm, which refers only to the living material outside the nucleus. But many remain fascinated by the image of that soup bubbling away as the lightning flashes and the volcanoes erupt.

Examples of protoplasm in a Sentence

Recent Examples on the Web

 Altmann believed that cells themselves came into existence when these granules assembled into colonies and built a shelter of protoplasm around themselves. — Carl Zimmer, STAT, "Shot through with microbes: How our bodies adapt to a hidden world of bacteria," 30 May 2018 Responding to a moldy sack of protoplasm who writes for the Daily Caller, CNN editor Chris Cillizza leapt to Jacobs’s defense. — Brian Beutler, New Republic, "The Republicans Broke American Politics, and Media Elites Are Blind to It," 26 May 2017

First Known Use of protoplasm

1848, in the meaning defined at sense 1

History and Etymology for protoplasm

German Protoplasma, from prot- + New Latin plasma

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More Definitions for protoplasm

protoplasm

noun
How to pronounce protoplasm (audio)

English Language Learners Definition of protoplasm

biology : the usually colorless substance that is the living part of animal and plant cells

See the full definition for protoplasm in the English Language Learners Dictionary

protoplasm

noun
pro·​to·​plasm | \ ˈprō-tə-ˌpla-zəm How to pronounce protoplasm (audio) \

Kids Definition of protoplasm

: the usually colorless and jellylike living part of cells

protoplasm

noun
pro·​to·​plasm | \ ˈprōt-ə-ˌplaz-əm How to pronounce protoplasm (audio) \

Medical Definition of protoplasm

1 : the organized colloidal complex of organic and inorganic substances (as proteins and water) that constitutes the living nucleus, cytoplasm, plastids, and mitochondria of the cell and is regarded as the only form of matter in which the vital phenomena (as metabolism and reproduction) are manifested
2 : cytoplasm

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