Meaning of groundbreaker

ground•break•er

Pronunciation: (ground'brā"kur), [key]
— n.
  1. a person who is an originator, innovator, or pioneer in a particular activity.
  2. an original idea, product, or the like that leads to or makes possible further developments, growth, improvements, etc.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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