Galilean telescope Meaning, Definition & Usage

  1. noun a type of refracting telescope that is no longer used in astronomy

WordNet


Definitions
  1. a refracting telescope in which the eyeglass is a concave instead of a convex lens, as in the common opera glass. This was the construction originally adopted by Galileo, the inventor of the instrument. It exhibits the objects erect, that is, in their natural positions.

Webster 1913