cytoplasm

noun

cy·​to·​plasm ˈsī-tə-ˌpla-zəm How to pronounce cytoplasm (audio)
: 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
cytoplasmic adjective
cytoplasmically adverb

Examples of cytoplasm in a Sentence

Recent Examples on the Web In young oocytes, they are situated throughout the cytoplasm. Quanta Magazine, 13 May 2024 Then there are circular RNAs: mRNA molecules (particularly in neurons) that get stitched into a circular form before they are moved beyond the nucleus into the cytoplasm. Philip Ball, Scientific American, 14 May 2024 By the time an oocyte is fully mature, harmful protein aggregates are undetectable, and the ELVAs vanish, revealing a clean cytoplasm. Quanta Magazine, 13 May 2024 Specific species of nematode can pierce the fungal hyphae to suck out the cytoplasm, so having toxocysts that emit poison gas on the hyphae could protect the fungus from such predators. DOI: Science Advances, 2023. Jennifer Ouellette, Ars Technica, 18 Jan. 2023 So, the genetic information needs to get from the nucleus to the cytoplasm. William A. Haseltine, Forbes, 13 Feb. 2024 But the production of proteins happens elsewhere, in the cytoplasm. William A. Haseltine, Forbes, 13 Feb. 2024 The mRNA is copied (aka transcribed) from DNA in a cell's nucleus and then moves to the cytoplasm for its code-deciphering translation into proteins. Beth Mole, Ars Technica, 2 Oct. 2023 There's an outer membrane, which contains LPS, and an inner membrane made of peptidoglycan, a large polymer that forms a rigid mesh scaffold around the bacterial cytoplasm. Beth Mole, Ars Technica, 5 Jan. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'cytoplasm.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

International Scientific Vocabulary

First Known Use

1857, in the meaning defined above

Time Traveler
The first known use of cytoplasm was in 1857

Dictionary Entries Near cytoplasm

Cite this Entry

“Cytoplasm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cytoplasm. Accessed 16 Jul. 2024.

Kids Definition

cytoplasm

noun
cy·​to·​plasm ˈsīt-ə-ˌplaz-əm How to pronounce cytoplasm (audio)
: the part of a cell outside the nucleus that includes a fluidlike substance and organelles (as chloroplasts and mitochondria)
cytoplasmic adjective

Medical Definition

cytoplasm

noun
cy·​to·​plasm ˈsīt-ə-ˌplaz-əm How to pronounce cytoplasm (audio)
: 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)
cytoplasmic adjective
cytoplasmically adverb

More from Merriam-Webster on cytoplasm

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