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Noun: smooth earthball
  1. An earthball with a peridium that is firm dry and smooth when young but developing cracks when mature; pale orange-yellow when young and reddish brown at maturity
    - Scleroderma bovista

Derived forms: smooth earthballs

Type of: earthball, false truffle, hard-skinned puffball, puffball

Part of: genus Scleroderma, Scleroderma