reflecting_telescope
1. [ noun ] (astronomy,optics) optical telescope consisting of a large concave mirror that produces an image that is magnified by the eyepiece
Synonyms: reflector
Examples:

"Isaac Newton invented the reflecting telescope in 1668"

Related terms: optical_telescope coude_telescope Maksutov_telescope Newtonian_telescope Cassegrainian_telescope Herschelian_telescope Schmidt_telescope parabolic_mirror