refractor.

1. A telescope that forms its principal image through lenses.

2. A device, object, or medium that bends or redirects waves through refraction.

Use it for

Words that belong together

• an astronomical refractor
• a small refractor

On the page

The observer aligned the refractor before opening the dome.

A small refractor stood beside the larger instrument.

Usage notes

Primary category: sci-fi. Forms: Singular refractor; plural refractors. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings.