mycelium

noun

my·​ce·​li·​um mī-ˈsē-lē-əm How to pronounce mycelium (audio)
plural mycelia mī-ˈsē-lē-ə How to pronounce mycelium (audio)
: the mass of interwoven filamentous hyphae that forms especially the vegetative portion of the thallus of a fungus and is often submerged in another body (as of soil or organic matter or the tissues of a host)
also : a similar mass of filaments formed by some bacteria (such as streptomyces)
mycelial
mī-ˈsē-lē-əl How to pronounce mycelium (audio)
adjective

Examples of mycelium in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
One focus of the program will be on work related to organic matter in the early stages of consideration as alternatives for design and manufacturing—things like algae, mycelium, and derivations of living organisms like insects—as structure for bioplastics, textiles, and pigment. —Angelica Villa, ARTnews.com, 30 Sep. 2024 The mycelium is growing and then further down all the substrates mix, sterilizations in our lab to inoculate the substrate. —Bon Appétit, 9 Oct. 2024 The seven women have created beautiful and functional objects that push the boundaries of design in a sustainable way, merging nature with art by crafting artworks with Reishi, a product of mycelium. —Lee Sharrock, Forbes, 20 Oct. 2024 So mycelium is the organism that mushrooms grow from and the substrate is their food and habitat. —Bon Appétit, 9 Oct. 2024 See all Example Sentences for mycelium 

Word History

Etymology

borrowed from New Latin, from myc- (from base of Greek mykēt-, mýkēs "mushroom, fungus") + -el- (of unknown origin) + -ium -ium — more at myco-

Note: Term introduced by the Austrian botanist and mycologist Leopold Trattinnick (1764-1849) in Fungi Austriaci, ad specimina viva cera expressi descriptiones ac historiam naturalem completam addidit Leopoldus Trattinnick/Oesterreichs Schwämme, nach lebendigen Originalen in Wachs gearbeitet mit Beschreibungen und einer ausführlichen Naturgeschichte, 1. Lieferung (Vienna, 1804). Trattinnick, who uses the word throughout the work, gives no indication of its derivation. His translation in the parallel vernacular columns is Schwammgewächs, literally, "mushroom growth." The reading of -el- as Greek hêlos "nail head, wart, callus," apparently first proposed in the Century Dictionary and copied by many dictionaries since, is improbable and in any case purely speculative. Somewhat more probable is the suggestion in the Oxford English Dictionary that the interposed -l- is after epithelium.

First Known Use

1836, in the meaning defined above

Time Traveler
The first known use of mycelium was in 1836

Dictionary Entries Near mycelium

Mycelia Sterilia

mycelium

Mycenae

See More Nearby Entries 

Cite this Entry

“Mycelium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mycelium. Accessed 1 Dec. 2024.

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Kids Definition

mycelium

noun
my·​ce·​li·​um mī-ˈsē-lē-əm How to pronounce mycelium (audio)
plural mycelia
-lē-ə
: the part of the body of a fungus that does not reproduce and usually consists of a mass of hyphae that are often growing in something else (as soil, organic matter, or the tissues of a plant or animal host)
mycelial
-lē-əl How to pronounce mycelium (audio)
adjective

Medical Definition

mycelium

noun
my·​ce·​li·​um mī-ˈsē-lē-əm How to pronounce mycelium (audio)
plural mycelia -lē-ə How to pronounce mycelium (audio)
: the mass of interwoven filamentous hyphae that forms especially the vegetative body of a fungus and is often submerged in another body (as of soil or organic matter or the tissues of a host)
also : a similar mass of filaments formed by some bacteria (as of the genus Streptomyces)

More from Merriam-Webster on mycelium

Britannica.com: Encyclopedia article about mycelium

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