mycelium(n = noun.plant) - the vegetative part of a fungus consisting of a mass of branching threadlike hyphae;
is a kind of plant part, plant structure
is a part of fungus
has parts: hypha
has particulars: sclerotium
The white threads or filamentous growth from which a mushroom or fungus is developed; the so-called mushroom spawn. [1913 Webster]
mycelium, n. (pl. mycelia) the vegetative part of a fungus, consisting of microscopic threadlike hyphae.
Derivative:
mycelial adj.
Etymology:
mod.L f. Gk mukes mushroom, after EPITHELIUM