parabolic antenna
[ păr′ə-bŏl′ĭk ]
An antenna used for sending or receiving radio signals that uses the principle of a parabolic mirror to focus incoming signals onto one reception point or direct the emissions of signals from a focal source point into a directed beam. Parabolic antennae are used extensively in radio communications, especially with satellites, and in radar. Also called dish antenna
Nearby words
parablepsia, parables, parabola, parabolic, parabolic aerial, parabolic antenna, parabolic mirror, parabolize, paraboloid, parabrake, parabulia
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.