Groundbreaking in a Sentence 

Definition of Groundbreaking  

new and original in an innovative and inventive way

Examples of Groundbreaking in a sentence

The metal shovel was a groundbreaking invention since it made manual work much more manageable.  
After making the groundbreaking discovery, the scientists looked for a way to use the new medicine to save people all over the world.  
Apple’s 2010 introduction of FaceTime was a groundbreaking advance in technology since it allowed Apple users to see each other while they talked.  

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