• WordNet 3.6
    • n sclerotium compact usually dark-colored mass of hardened mycelium constituting a vegetative food-storage body in various true fungi; detaches when mature and can give rise to new growth
    • n Sclerotium form genus of sterile imperfect fungi; many form sclerotia; some cause sclerotium disease in plants
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Webster's Revised Unabridged Dictionary
    • Sclerotium (Bot) A hardened body formed by certain fungi, as by the Claviceps purpurea, which produces ergot.
    • Sclerotium (Zoöl) The mature or resting stage of a plasmodium.
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Century Dictionary and Cyclopedia
    • n sclerotium In botany:
    • n sclerotium A pluricellular tuber-like reservoir of reserve material forming on a primary filamentous mycelium, from which it becomes detached when its development is complete. It usually remains dormant for a time, and ultimately produces shoots which develop into sporophores at the expense of the reserve material. The shape is usually spherical, but it may be horn-shaped, as in Claviceps purpurea. In the Mycetozoa the sclerotium is formed out of a plasmodium, and after a period of rest it develops again into a plasmodium. De Bary.
    • n sclerotium [capitalized] An old genus of fungi, comprising hard, black, compact bodies which are now known to be a resting-stage of the mycelium of certain other fungi, such as Peziza tuberosa. See ergot, 2.
    • n sclerotium In zoology, one of the peculiar quiescent cysts or hypnocysts of Mycetozoa, not giving rise to spores.
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Chambers's Twentieth Century Dictionary
    • Sclerotium a hard, multicellular tuber-like body formed towards the end of the vegetative season by the close union of the ordinary mycelial filaments of Fungi
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Webster's Revised Unabridged Dictionary
NL., fr. Gr. sklhro`s hard
Chambers's Twentieth Century Dictionary
Gr. sklēros, hard.


In literature:

The stem is elongated, springing from an irregular black tuber, called sclerotium.
"The Mushroom, Edible and Otherwise" by M. E. Hard
The latter differs in not springing from a sclerotium.
"European Fungus Flora: Agaricaceae" by George Massee
The grain is replaced by a dense fungoid tissue (sclerotium) largely charged with an oily fluid.
"The New Gresham Encyclopedia" by Various