breakthrough | |
1. adj. Characterized by major progress or overcoming some obstacle. | |
a breakthrough technological advance | |
2. n. (military) An advance through and past enemy lines. | |
3. n. Any major progress; such as a great innovation or discovery that overcomes a significant obstacle. | |
Albert Einstein is credited with making some of the greatest breakthroughs in modern physics. | |
4. n. (sports) The penetration of the opposition defence | |
5. n. (construction) The penetration of a separating wall or the remaining distance to an adjacent hollow (a crosscut in mining) or between two parts of a tunnel build from both ends; knockthrough. | |