| MEANING : |
| 1. the force or energy that is associated with a body in motion. 2. an impelling force |
| USAGE EXAMPLE 1: |
| The deployment of anti-missile systems by the U.S. provided a strong impetus for Russia and China to build even more sophisticated missiles. |
| USAGE EXAMPLE 2: |
| The advent of a new anti-rejection drug, cyclosporine, gave new impetus to organ transplants in the 1980s |
