puff·ball /ˈpʌfˌbɔl/
  塵菌,羽狀實
  puff·ball /ˈpəfˌbɔl/ 名詞
  馬勃
  Puff·ball n. Bot. A kind of ball-shaped fungus (Lycoperdon giganteum, and other species of the same genus) full of dustlike spores when ripe; -- called also bullfist, bullfice, puckfist, puff, and puffin.
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  puffball
       n 1: any of various fungi of the family Lycoperdaceae whose round
            fruiting body discharges a cloud of spores when mature
            [syn: true puffball]
       2: any of various fungi of the genus Scleroderma having
          hard-skinned subterranean fruiting bodies resembling
          truffles [syn: earthball, false truffle, hard-skinned
          puffball]