noun hy·po·thallus \"+\

Definition of hypothallus

  1. 1 :  a marginal outgrowth of hyphae from the thallus in crustose lichens

  2. 2 :  a residue like a film that remains after the formation of sporangia in slime molds of the class Myxomycetes

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Origin and Etymology of hypothallus

New Latin, from hypo- + thallus

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