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Dictionary Suite
aerial a radio or television antenna. [1/6 definitions]
arista a prominent bristle that extends from the antenna of certain dipterous insects and regulates speed. [1/2 definitions]
cable television a form of television in which the sound and picture signals from distant stations are received by a master antenna and then delivered by electrical cable. Cable television typically provides clear reception, access to a large number of channels, and a relatively wide range of programming, whereas conventional television is limited to the reception of signals from local stations.
dipole see "dipole antenna." [1/3 definitions]
dipole antenna a radio or television antenna consisting of two equal rods that extend outward in opposite directions.
direction finder a device for ascertaining the direction of incoming radio waves or signals, consisting of a loop antenna that rotates.
dish a concave antenna, as for television or other communications. [1/7 definitions]
dish antenna a radio antenna with a round, concave reflector, used to receive or send satellite and microwave signals.
feeler an organ of touch on certain animals, such as an insect's antenna. [1/2 definitions]
goniometer an electrical device, consisting of a radio receiver and antenna, used to determine the direction and angle of incoming radio signals. [1/2 definitions]
lead-in the section of a radio or television antenna that connects to the transmitter or receiver. [1/3 definitions]
rabbit ears (informal) an indoor television antenna consisting of a plastic base and two extendable, swiveling, vertical rods.
radome a dome-shaped structure that protects a radar antenna from the weather, esp. on aircraft, without affecting reception.
repeater in communications, an antenna that can receive, amplify, and transmit the same signal. [1/3 definitions]
satellite dish a dish antenna designed to receive and transmit electromagnetic signals relayed by satellite, commonly used to receive television signals broadcast by satellite.
transmitter the broadcasting apparatus that generates, amplifies, and modulates radio waves and sends the signal thus produced from an antenna. [1/3 definitions]