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“refractor”
An instrument which alters the direction of a beam of light by passing it between two transparent materials of different densities.
This entry is located in the following units:
frag-, frang-, fract-, fring-
(page 5)
-or; -our (primarily British)
(page 12)
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“refractor”
refractor telescope
A telescope that uses lenses to gather light from faint objects.
The front, objective, lens is usually made of two or more components, with the eyepiece at the other end being the point at which the observer sees the image of the object.
This entry is located in the following unit:
Astronomy and related astronomical terms
(page 22)