hypha

/ˈhaɪfə/
noun
  1. A long, branching filament that makes up the body (mycelium) of a fungus.
    • The mold spreads by extending its hypha into new food sources.
    • Each hypha is a thread-like cell that helps the fungus absorb nutrients.
    • Under the microscope, you can see the hypha growing through the soil.
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