Without reflection.

A combination of a primary concave mirror and a secondary convex mirror, often used in optical telescopes and radio antennas, the main characteristic being that the optical path folds back onto itself, relative to the optical system's primary mirror entrance aperture.

The quality of being reflected.

A reflector with a curved reflecting surface that forms part of a paraboloid (as opposed to, for example, a sphere)

In a reflected manner; by reflection.