noun Ge·as·trum \jēˈastrəm\

Definition of Geastrum

  1. :  a genus (the type of the family Geastraceae) of basidiomycetous fungi having the outer peridium when dry splitting into starlike segments — compare earthstar

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Origin and Etymology of geastrum

New Latin, from ge- + -astrum (from Greek astēr star) — more at star

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a trip made at another's expense

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