The phrase "groundbreaking experiment" means a very important and innovative test or study that brings new and significant information or discoveries. Full definition
Despite increased opportunities for groundbreaking experiments, most scientists choose conservative research strategies to reduce personal risk, which makes collective discovery slower and more expensive. (uchospitals.edu)
Now scientists are one step closer to creating the real thing, which could enable groundbreaking experiments of a much more empirical kind. (scientificamerican.com)
The work appears at once brutal and refined, becoming the high point of Grau - Garriga's life - long groundbreaking experiments with tapestry. (arthaps.com)