1) Electronic music group 2) Fungus 3) Puffball-like fungus 
• (n.) A curious fungus of the genus Geaster, in which the outer coating splits into the shape of a star, and the inner one forms a ball containing the dustlike spores.
(from the article `Lycoperdaceae`) family of fungi in the order Agaricales (phylum Basidiomycota, kingdom Fungi) that includes about 160 species, among them earthstars and puffballs, ...
Earth'star` noun (Botany) A curious fungus of the genus Geaster , in which the outer coating splits into the shape of a star, and the inner one forms a ball containing the dustlike spores. 
[n] - any fungus of the family Geastraceae
noun any fungus of the family Geastraceae; in form suggesting a puffball whose outer peridium splits into the shape of a star