Definition of parabolic reflector
1 or parabolic mirror : a concave mirror that has the form of a paraboloid of revolution so that rays emanating from the geometrical focus and reflected from the surface are all parallel to each other and to the axis of symmetry and rays from a distant source (as a star) are reflected to the focus and that is used in reflecting telescopes, searchlights, and headlights
2 : a similar device for the directional reflection of microwaves and sound waves
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Seen and Heard
What made you want to look up parabolic reflector? Please tell us where you read or heard it (including the quote, if possible).