Meaning of giant puffball

gi'ant puff'ball

Pronunciation: [key]
  1. a puffball, Calvatia gigantea, that is the largest of its kind, known to have grown to more than 5 ft. (1.6 m) in circumference.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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