cytoplasm

noun
cy·​to·​plasm | \ ˈsī-tə-ˌpla-zəm How to pronounce cytoplasm (audio) \

Definition of cytoplasm

: the organized complex of inorganic and organic substances external to the nuclear membrane of a cell and including the cytosol and membrane-bound organelles (such as mitochondria or chloroplasts) — see cell illustration

Other Words from cytoplasm

cytoplasmic \ ˌsī-​tə-​ˈplaz-​mik How to pronounce cytoplasm (audio) \ adjective
cytoplasmically \ ˌsī-​tə-​ˈplaz-​mi-​k(ə-​)lē How to pronounce cytoplasm (audio) \ adverb

Examples of cytoplasm in a Sentence

Recent Examples on the Web Unlike the main repository of nuclear DNA, the mitochondria are like hundreds of thousands of branch libraries of genetic information floating around in the cytoplasm of a human egg cell. Stephen S. Hall, Wired, 11 Mar. 2021 In the body, cells have DNA sensors called cyclic GMP-AMP synthase (cGAS), which recognize foreign DNA in the cytoplasm and trigger the production of cyclic dinucleotides (CDNs). William A. Haseltine, Forbes, 26 Apr. 2022 While S100s are generally found in neural cells, they are also found in the gut and in the cytoplasm of white blood cells called neutrophils. William A. Haseltine, Forbes, 9 Apr. 2022 Studies indicate that inside the cells of a developing bird feather, the beta-keratin starts out distributed in the watery cytoplasm. Quanta Magazine, 21 June 2021 But the cytoplasm is actually jammed with proteins, RNA, and other small molecules, all commingling at incredible speeds. James Somers, The New Yorker, 28 Feb. 2022 Studies indicate that inside the cells of a developing bird feather, the beta-keratin starts out distributed in the watery cytoplasm. Quanta Magazine, 21 June 2021 Studies indicate that inside the cells of a developing bird feather, the beta-keratin starts out distributed in the watery cytoplasm. Quanta Magazine, 21 June 2021 Studies indicate that inside the cells of a developing bird feather, the beta-keratin starts out distributed in the watery cytoplasm. Quanta Magazine, 21 June 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cytoplasm.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of cytoplasm

1857, in the meaning defined above

History and Etymology for cytoplasm

International Scientific Vocabulary

Learn More About cytoplasm

Time Traveler for cytoplasm

Time Traveler

The first known use of cytoplasm was in 1857

See more words from the same year

Dictionary Entries Near cytoplasm

cytophotometry

cytoplasm

cytoplasmic heredity

See More Nearby Entries 

Statistics for cytoplasm

Last Updated

13 May 2022

Cite this Entry

“Cytoplasm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cytoplasm. Accessed 24 May. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for cytoplasm

cytoplasm

noun
cy·​to·​plasm | \ ˈsī-tə-ˌpla-zəm How to pronounce cytoplasm (audio) \

Kids Definition of cytoplasm

: the jellylike material that fills most of the space in a cell and surrounds the nucleus

cytoplasm

noun
cy·​to·​plasm | \ ˈsīt-ə-ˌplaz-əm How to pronounce cytoplasm (audio) \

Medical Definition of cytoplasm

: the organized complex of inorganic and organic substances external to the nuclear membrane of a cell and including the cytosol and membrane-bound organelles (as mitochondria or chloroplasts)

Other Words from cytoplasm

cytoplasmic \ ˌsīt-​ə-​ˈplaz-​mik How to pronounce cytoplasm (audio) \ adjective
cytoplasmically \ -​mi-​k(ə-​)lē How to pronounce cytoplasm (audio) \ adverb

More from Merriam-Webster on cytoplasm

Nglish: Translation of cytoplasm for Spanish Speakers

Britannica.com: Encyclopedia article about cytoplasm

WORD OF THE DAY

Test Your Vocabulary

Great Words for Scrabble

  • scrabble tiles that read scrabble quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!