Mycelium
Pronunciation : My*ce"li*um
Part of Speech : n.
Etymology : [NL., fr. Gr. my`khs a mushroom.] (Bot.)
Definition : Defn: The white threads or filamentous growth from which a mushroom or fungus is developed; the so-called mushroom spawn. -- My*ce"li*al, a.
Source : Webster's Unabridged Dictionary, 1913