rhizoid

from WordNet (r) 3.0 (2006)
rhizoid
    n 1: any of various slender filaments that function as roots in
         mosses and ferns and fungi etc
    
from The Collaborative International Dictionary of English v.0.48
Rhizoid \Rhi"zoid\, n. [Gr. ??? root + -oid.] (Bot.)
   A rootlike appendage.
   [1913 Webster]
    

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