- a military movement or advance all the way through and beyond an enemy's frontline defense.
- an act or instance of removing or surpassing an obstruction or restriction; the overcoming of a stalemate: The president reported a breakthrough in the treaty negotiations.
- any significant or sudden advance, development, achievement, or increase, as in scientific knowledge or diplomacy, that removes a barrier to progress: The jet engine was a major breakthrough in air transport.
- an infection, disease, disorder, or condition that occurs in an individual despite their having received a vaccine, medication, or treatment: Covid breakthroughs are usually less severe than infections in unvaccinated people, indicating that the vaccine is still doing its job of combating the virus.
- constituting a breakthrough: Their products are engineered with breakthrough technology. Critics called it a breakthrough film.
- relating to or being an infection, disease, disorder, or condition that occurs as a breakthrough: In the original vaccine trial, 89% of breakthrough infections were with a particular family of virus strains.She experienced disabling breakthrough pain despite the high dose of painkillers she was taking.
- to penetrate
- to achieve success, make a discovery, etc, esp after lengthy efforts
- a significant development or discovery, esp in science
- the penetration of an enemy's defensive position or line in depth and strength
