'Puffball' definitions:

Definition of 'puffball'

From: WordNet
noun
Any of various fungi of the family Lycoperdaceae whose round fruiting body discharges a cloud of spores when mature [syn: puffball, true puffball]
noun
Any of various fungi of the genus Scleroderma having hard- skinned subterranean fruiting bodies resembling truffles [syn: earthball, false truffle, puffball, hard-skinned puffball]

Definition of 'Puffball'

From: GCIDE