It is necessary to distinguish all forces sharply into two groups: 1, the attractional (gravity, adhesion, cohesion, chemism), and 2, the impactive or momentum forces of masses, molecules and atoms.

Along with this revolution has come another, quieter and more subtle, but perhaps more impactive and ultimately more dynamic in its potential for change.

And in what may prove to be the most impactive development, the university is nurturing the nexus of science and business to create a biotechnology sector that has already brought millions of dollars and hundreds of jobs into town.

Impactive

Meaning

Adj