'Mycelium' definitions:
Definition of 'mycelium'
(from WordNet)
noun
The vegetative part of a fungus consisting of a mass of branching threadlike hyphae
Definition of 'Mycelium'
From: GCIDE
- Mycelium \My*ce"li*um\, n. [NL., fr. Gr. my`khs a mushroom.] (Bot.) The white threads or filamentous growth from which a mushroom or fungus is developed; the so-called mushroom spawn. -- {My*ce"li*al}, a. [1913 Webster]