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[skli-roh-shee-uh m] /sklɪˈroʊ ʃi əm/
noun, plural sclerotia
[skli-roh-shee-uh] /sklɪˈroʊ ʃi ə/ (Show IPA).
a vegetative, resting food-storage body in certain higher fungi, composed of a compact mass of hardened mycelia.
1810-20; < New Latin; see sclerotin, -ium
Related forms
[skli-roh-shuh l] /sklɪˈroʊ ʃəl/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for sclerotium


noun (pl) -tia (-ʃɪə)
a compact mass of hyphae, that is formed by certain fungi and gives rise to new fungal growth or spore-producing structures
Derived Forms
sclerotioid, sclerotial, adjective
Word Origin
C18: from New Latin, from Greek sklēros hard
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Encyclopedia Article for sclerotium

a persistent, vegetative, resting spore of certain fungi (e.g., Botrytis, Sclerotium). It consists of a hard, dense, compact mycelium (mass of filaments that make up the body of a typical fungus) that varies in form and has a dark-coloured covering. Size varies from a few cells to many; sometimes masses up to 10 cm (4 inches) are formed. The sclerotia of Rhizoctonia are common on potato tubers. The sclerotia of ergot (q.v.) are poisonous to animals, including humans.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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