mycelium Meaning, Definition & Usage

  1. noun the vegetative part of a fungus consisting of a mass of branching threadlike hyphae

WordNet

My*ce"li*um noun
Etymology
NL., fr. Gr. my`khs a mushroom.
Definitions
  1. (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.

Webster 1913