[mahy-see-lee-uh m]

noun, plural my·ce·li·a [mahy-see-lee-uh] /maɪˈsi li ə/. Mycology.

the mass of hyphae that form the vegetative part of a fungus.

Origin of mycelium

1830–40; < New Latin, equivalent to Greek myk- myc- + (h)ḗl(os) wart, nail + New Latin -ium -ium
Related formsmy·ce·li·al, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for mycelium


noun plural -lia (-lɪə)

the vegetative body of fungi: a mass of branching filaments (hyphae) that spread throughout the nutrient substratum
Derived Formsmycelial, adjectivemyceloid (ˈmaɪsɪˌlɔɪd), adjective

Word Origin for mycelium

C19 (literally: nail of fungus): from myco- + Greek hēlos nail
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

Medicine definitions for mycelium



n. pl. my•ce•li•a (-lē-ə)

The vegetative part of a fungus, which consists of a mass of branching, threadlike hyphae.
Related formsmy•celi•al null adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for mycelium



Plural mycelia

The mass of fine branching tubes (known as hyphae) that forms the main growing structure of a fungus. Visible structures like mushrooms are reproductive structures produced by the mycelium.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.