hypha

from WordNet (r) 3.0 (2006)
hypha
    n 1: any of the threadlike filaments forming the mycelium of a
         fungus
    
from The Collaborative International Dictionary of English v.0.48
hypha \hypha\, n.; pl. {hyphae}.
   any of the threadlike filaments forming the mycelium of a
   fungus. See {hyphae}.
   [WordNet 1.5]
    

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