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antenna    音标拼音: [ænt'ɛnə]
n. 天线,触须,触角

天线,触须,触角

antenna
天线

antenna
n 1: an electrical device that sends or receives radio or
television signals [synonym: {antenna}, {aerial}, {transmitting
aerial}]
2: sensitivity similar to that of a receptor organ; "he had a
special antenna for public relations" [synonym: {antenna},
{feeler}]
3: one of a pair of mobile appendages on the head of e.g.
insects and crustaceans; typically sensitive to touch and
taste [synonym: {antenna}, {feeler}]

Antenna \An*ten"na\, n.; pl. {Antenn[ae]}. [L. antenna
sail-yard; NL., a feeler, horn of an insect.]
1. (Zool.) A movable, articulated organ of sensation,
attached to the heads of insects and Crustacea. There are
two in the former, and usually four in the latter. They
are used as organs of touch, and in some species of
Crustacea the cavity of the ear is situated near the basal
joint. In insects, they are popularly called horns, and
also feelers. The term in also applied to similar organs
on the heads of other arthropods and of annelids.
[1913 Webster]

2. (Electronics) A metallic device, variously shaped,
designed for the purpose of either transmitting or
receiving radio waves, as for radio or television
broadcasting, or for transmitting communication signals.
Some types are: {whip antenna}, {antenna tower}, {horn
antenna}, {dish antenna}, {directional antenna} and
{rabbit ears}. See {transmitter}, {receiver}.
[PJC]

29 Moby Thesaurus words for "antenna":
aerials, barb, barbel, barbule, bedspring type, cat whisker,
directional antenna, dish, doublet, feed-and-reflector unit,
feeler, mast, mattress type, palp, palpus, reflector,
rhombic antenna, scanner, strike radar scanner, tactile cell,
tactile corpuscle, tactile hair, tactile organ, tactile process,
tactor, tower, transmitting antenna, vibrissa, wave antenna



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  • Antenna (radio) - Wikipedia
    Antennas can be designed to transmit and receive radio waves in all horizontal directions equally (omnidirectional antennas), or preferentially in a particular direction (directional, or high-gain, or "beam" antennas)
  • TV Antenna Map by Zip Code – Channel Master
    These popular channels and more are available in the US and can be received nationwide with a TV antenna Enter your address for a map of broadcast towers and signal information in your area
  • TV Antennas Audio Video Antennas: Electronics - amazon. com
    Shop through a wide selection of TV Antennas at Amazon com Free shipping and free returns on Prime eligible items
  • The Best Digital TV Antennas for 2026 - PCMag
    If you want to cut the cord but keep live TV, you need the right antenna to tune into over-the-air broadcasts Here's what you need to know, along with our top picks
  • TV Antenna: HDTV Digital TV Antennas - Best Buy
    Get sharp pictures from your local stations with TV antennas from Best Buy Shop indoor outdoor digital TV antennas or an amplified HDTV antenna for indoor use
  • Antenna Basics
    Before we can design an antenna or discuss antenna types, we must understand the basics of antennas, which are the fundamental parameters that characterize an antenna
  • Antenna | Types, Uses Benefits | Britannica
    antenna, component of radio, television, and radar systems that directs incoming and outgoing radio waves
  • What are antennas and how do they work? - TechTarget
    An antenna is a specialized transducer that converts electric current into electromagnetic (EM) waves or vice versa Antennas are used to transmit and receive nonionizing EM fields, which include radio waves, microwaves, infrared radiation (IR) and visible light
  • What is an antenna? - NASA
    An antenna is a metallic structure that captures and or transmits radio electromagnetic waves Antennas come in all shapes and sizes from little ones that can be found on your roof to watch TV to really big ones that capture signals from satellites millions of miles away





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