معنی کلمه :‌ refractiveness

The quality or condition of being refractive.

1. (Mil.) A soldier especially expert and well drilled, who takes his place in front of a military company, as a guide for the others in their exercises; a file leader. He originally stood in front of the right wing. [Written also flugelman.] 2. Hence, one who leads the way. [Jocose]