noun
reflecting telescope
A telescope that uses a mirror as the objective. Contrasts with 屈折望遠鏡 (refracting telescope).
反射望遠鏡は凹面鏡を使って光を集める。
A reflecting telescope uses a concave mirror to collect light.
屈折望遠鏡 uses lenses, while 反射望遠鏡 uses mirrors.
Compound of 反射 (reflection) and 望遠鏡 (telescope).