1. a telescope that uses lenses to gather and focus light
Usage: astronomy
2. something that refracts light or other waves
Usage: physics

Examples

• The observatory’s main refractor has a 12-inch lens.
• She used a small refractor to observe the moon’s craters.
• The refractor produced sharp, clear images of Saturn’s rings.
• Many amateur astronomers prefer refractors for planetary viewing.
• The prism acts as a refractor, splitting white light into colors.
• This optical refractor bends the light beam at a precise angle.